quaternary是什么意思   quaternary怎么读

英式:[kwə'tɜ:nərɪ]    美式:[kwə'tɜ:nərɪ]

quaternary单词基本解析:

n.四,四个一组adj.第四组中的组成部分,四进制的
adj.第四纪的, 四的, 四进制的n.四,四进制,第四纪
n.四,四个一组;

quaternary变化用词:

复数:quaternaries;
名词复数: quaternaries |
复数:quaternaries

quaternary英英释义:

Noun

1. the cardinal number that is the sum of three and one

名词 quaternary:

last 2 million years

同义词:Quaternary period, Age of Man

the cardinal number that is the sum of three and one

同义词:four, 4, IV, tetrad, quatern, quaternion, quaternity, quartet, quadruplet, foursome, Little Joe

形容词 quaternary:

consisting of or especially arranged in sets of four

同义词:quaternate

coming next after the third and just before the fifth in position or time or degree or magnitude

同义词:fourth, 4th

quaternary[ kwə'tə:nəri ]n.last 2 million years

同义词:Quaternary periodAge of Man

the cardinal number that is the sum of three and one

同义词:four4IVtetradquaternquaternionquaternityquartetquadrupletfoursomeLittle Joe

adj.consisting of or especially arranged in sets of four

"a quaternary compound"

同义词:quaternate

coming next after the third and just before the fifth in position or time or degree or magnitude

"the quaternary period of geologic time extends from the end of the tertiary period to the present"

同义词:fourth4th

quaternary中文词源:

quaternary用法和例句:

Cationics are usually quaternary ammomium salts.

阳离子表面活性剂通常为季铵盐类.

辞典例句

Moreover , there is a chiral quaternary carbon in the 1 - hydroxyethylidenediphosphonic ( hedp ) ligand.

证实1-羟基乙叉 -1,1-二膦酸配体 ( hedp ) 中的季碳为手性碳原子.

互联网

Iron - nickel - phosphorus - boron quaternary alloy electroless plating on copper panel was described.

在铜基上化学镀铁 - 镍 - 磷 - 硼四元合金.

互联网

Computational experiments have shown that protein primary sequence contains quaternary structure information.

计算实验表明蛋白质一级结构包含着四级结构信息.

互联网

The silicone quaternary was synthesized reaction of - H silicone, unsaturated - ether, chloroacetic acid, dimethylamine.

以低含氢硅油 、 不饱和聚醚 、 一氯乙酸和二甲胺为原料, 制备得阳离子有机硅油.

互联网

Various iodinated strong base quaternary ammonium anion exchange resins were prepared.

制备了数种不同的强碱型阴离子碘化树脂.

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The effects of different quaternary ammonium salts were studied.

研究了季铵盐的种类、结构对插层效果的影响.

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An antistatic agent of polyacrylamide quaternary ammonium compound was designed and synthesized.

设计合成了聚丙烯酰胺季铵盐类的抗静电剂.

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The quaternary excess volumes were predicted by using only binary parameter without any multicomponent parameters.

在不引入任何多元参数的情况下,直接用二元参数预测四元系的超额体积.

互联网

A novel bi - pyridine quaternary ammonium salt cationic surfactants was prepared by acrylic modified rosin.

普通松香通过丙烯酸改性,与氯化亚砜、甲醛、吡啶合成新型吡啶双季铵盐阳离子表面活性剂.

互联网

A great many proteins, especially enzymes, are oligomeric and consequently possess quaternary structure.

很多蛋白质尤其是酶类, 是低聚物,因此拥有四级结构.

互联网

With chlorine and phenols, of categories, like supporting alternative use quaternary more good results.

畜禽消毒剂特点:空气消毒.与含氯、酚类 、 氧化类 、 季铵盐类配套交替使用效果更加佳.

互联网

The electronic structure of a quaternary alloy has been investigated using EHT band calculation method.

用紧束缚能带计算方法(EHT)研究了标题多元合金的能带及电子结构.

互联网

It was pointed out that the quaternary ammonium salt was the most important phase transfer catalyst.

指出了此类合成反应中所采用的重要相转移催化剂是季铵盐类.

互联网

OBJECTIVE To study the synthesis of quaternary ammonium salt derivatives of haloperidol and their vasodilative activities.

目的合成氟哌啶醇季铵盐衍生物及其还原物并研究它们的扩血管活性.

互联网

quaternary


Further,three secondary amino groups in GS(R)_3were alkyled by reacting with methyl iodide to give title compound,dentritic quaternary ammonium salt GI(G)_3 with 82.

3进一步与碘甲烷反应,其分子中的3个仲氨基被季铵化,生成树枝状季铵盐GI(R)3,产率为82。


ACQ-DB is a water-based wood preservative that contains copper and Quaternary Ammonium Salts ( DDAC ) and boron-containing compounds.

DB是一种水溶性木材防腐剂,其主要活性成分包含铜、季铵盐(DDAC)、硼化合物。


AN EXPERIMENTAL STUDY ON THREE QUATERNARY PHASES IN THE Fe-Sn-Sb-S SYSTEM:Pb-FREE FRANCKEITE,Pb-FREE CYLINDRITE AND (Fe,Sb)-OTTEMANNITE S.S.

Fe-Sn-Sb-S体系内四元相无铅辉锑锡铅矿、无铅圆柱锡矿及铁锑斜方硫锡矿的实验研究


HRS88-1, borehole is another Quaternary borehole drilled after Shun-5 bore hole in the north of the Beijing Plain.

HR88-1孔是北京平原区北部继顺5孔之后,又一重要的第四系钻孔。


NHPI combined with assistant catalyst such as azodiisobutyronitrile, quaternary ammonium bromide, anthraquinone, alcohol etc. can also catalyze aerobic oxidations.

NHPI与有机助催化剂如偶氮二异丁腈、溴化季铵盐、蒽醌和醇等也能催化分子氧氧化反应。


NHPI combined with assistant catalyst such as : azodiisobutyronitrile, quaternary ammonium bromide, anthraquinone, alcohol et.al can also catalyze aerobic oxidations.

NHPI与有机助催化剂如:偶氮二异丁腈、溴化季铵盐、蒽醌、醇等也能催化分子氧氧化反应。


ZHANG Jia-qiang,LI Cong-xian,CONG You-zi.Magnetic fabric characteristics of hydraulic deposit,eolian deposit and paleosol[J].Marine Geology &Quaternary Geology,1999,19 (2):85-94.

[9]张家强,李从先,丛友滋.水成沉积与风成沉积及古土壤的磁组构特征[J].海洋地质与第四纪地质,1999,19 (2):85-94.


Some proteins consist of more than one polypeptide chain, and the association of these subunits in the protein gives rise to the quaternary structure.

一些蛋白质不只是由一个多肽链组成的,并且这些蛋白质亚基的结构产生了四级结构的。


The Upper Jurassic, Cretaceous and Quaternary sediments are mostly siliciclastic and have the character of platform cover.

上侏罗纪,白垩纪与四元沉积物几乎都是硅质碎屑物,并且具有地台盖层特性。


The upper structure layer is composed of the Cretaceous to the Quaternary, which shows a large slope dipping northwestward.

上构造层由白垩系-第四系构成,构造形态为-北西倾斜坡。


The Gejiu manganese nodule deposit in the Quaternary system placer is situated at the top of the cassiterite-polymetallic sulfide orefield.

个旧锰结核矿床产在锡石-多金属硫化物矿田顶部的第四系砂锡矿之中。


Post-rifting mainly occurred in Miocene and Pliocene and Quaternary, and formed Guantao,Minghuazhan and Pingyuan Formations.

中南区断陷走向呈近东西向、北东向和北西向,断陷都是北断南超的半地堑;


Most of the gas fields in China have been formed and finalized in Neogene Quaternary,which distribute widely in various petroliferous basins.

中国大多数气田最终形成、定型于新近纪-第四纪,它们广泛地分布于各类含气(油)盆地。


The north is the alluvial plain of Huanghe, the Quaternary deposition is diluvian sand and soil .

中部为山前倾斜平原区,第四系厚度从南向北变厚,第四系为冲洪积形成的粘性土,下部基岩为奥陶系灰岩和第三系岩浆岩;


Main compositions: double strands quaternary amine salt, solubilizing agent, softener and natural antibacterial essential oil.

主成份:新型无毒抗菌剂双链季胺盐、增溶剂、柔软剂、天然抗菌芳香精油。


Determining spatial relation between two spherical objects is approached in this paper by recursive refine based on QTM (Quaternary Triangular Mesh) hierarchical partition.

主要讨论了在基于四元三角网 ( quaternary Triangular Mesh,简称 QTM)球面层次格网剖分的基础上 ,通过单元递归细化来确定 2个球面实体的空间关系。


The groundwater in Qian an County includes the pore phreatic water,the pore confined water of the Quaternary period and up Tertiary cranny pore confined water.

乾安县地下水主要有第四系孔隙潜水、第四系孔隙承压水、上第三系裂隙孔隙承压水。


From the Cretaceous to the Early Cenozoic, it was uplifted again, until the Quaternary to build huge mountains with two large sedimentary basins on both sides.

从白垩纪到早新生代,它再度隆升,直至第四纪时形成雄伟的高大山系,两侧形成相应的大型沈积盆地。


From boundary to centre of the basin,the reservoir beds for exploring for gas are Oligocene,Miocene,Pliocene and Quaternary and the lithology changes from coarseness to fineness.

从盆地边缘到中心,有勘探意义的储层依次有渐新统、中新统、上新统和第四系,岩性由粗变细。


The movement is mainly uplift movement, with everage uplift amplitude being 1700m, rate 0. 031mm/a, the largest one being in Quaternary period.

以上升运动为主,平均升幅1700m,速度0.031mm/a,以第四纪为最大.


In this paper we take Hangzhou as an example.Introduce the treatment of extracting buried active fault information covered by Quaternary unconsolidated sediments.

以杭州地区为例,系统介绍了提取第四纪松散沉积物覆盖区域的隐伏活断层信息流程和方法。


EI/MS and ESI/MS were used for the analysis of quaternary ammonium salt cationic surfactants.

以电子轰击质谱法(EI/MS)与电喷雾质谱法(ESI/MS)相结合,分析季铵盐型表面活性剂。


Industries based on brainwork or knowledge are called the quaternary industry.

以脑力劳动或知识为基础的产业被称为第四产业。


Among the Karst caves, the main part of Buddha Cave, Sky Cave and wind Cave were formed in 2.46Ma, that was Late Neogene of Early Quaternary.

佛爷洞、天洞及风洞主体形成始于距今约2.46Ma前的第三纪末期(N2)或第四纪早期(Q1)。


As a main method, seismic exploration can determine the depths of basement rocks and investigate the fault activity according to the extension of the fault in Quaternary layers.

作为一种主要手段,地震勘查能够查明基岩埋深,根据基岩断层向第四系地层内部的延伸可研究断层的活动性。


The Salton Sea area is no stranger to volcanism as well during the Quaternary along with the Salton Sea geothermal field.

使用者通过某种方式(在善引导下的生活实践)认识到了桌子的理念。


The cover rocks are marine mudstone from Pliocene to Quaternary.

储层发育有砂岩、灰岩(礁灰岩)、基岩等。


Water channels include coal seam roof and floor mining induced fissures,faults,karstic subsided columns,Quaternary scuttles,fissure concentrated zones and badly sealed boreholes.

充水通道包括顶底板采动裂隙、断层、岩溶陷落柱、第四系天窗、裂隙密集带及封闭不良钻孔等,其中顶底板采动裂隙、断层、岩溶陷落柱为主要导水通道。


Those correspond to Quaternary, Pliocene, Upper Miocene, Lower Miocene and Eocene respectively.

分别为第四系、上新统、中新统上段、中新统下段及始新统。


Using AVO technique to detect Quaternary shallow biogas in Hangzhou Bay area.

利用AVO技术检测杭州湾地区第四系浅层生物气


Using the relation of simple root cyclic codes and repeat root cyclic codes,the linear quantum codes that can be constructed from quaternary c.

利用单根循环码与重根循环码关系,确定出所有能由短码长的四元循环码构造的线性量子码。


The extractants used in gold recovery include modified amines, quaternary ammonium salts, alkyl phosphorus esters of oxides and guanidino-based compounds.

包括改性胺,季铵盐,磷氧化物及胍类萃取剂等。


Shi Jiufeng in the 3,800 meters in altitude over the mountain peak, many ice moraine lakes, it is left to the Quaternary glaciers.

十九峰中海拔在3800米以上的峰顶有不少高山冰碛湖泊,这是第四纪冰川留下来的。


Late Quaternary Hydrographic Records from the South China Sea I .

南海晚第四纪古水文之探讨I.


Paleotempestology has become an important component of Quaternary Palaeoclimatology.

古风暴学研究的替代指标包括:文字记载、特征的风暴事件沉积、海相化石组合、同位素地球化学组成等。


Morphine binds strongly to opiate receptors in the brain to produce analgesia.In vitro studies on opiate receptors show that the quaternary salt of morphine also binds strongly.

吗啡通过与大脑中的阿片受体紧密粘合产生止痛作用,在体外研究中,阿片受体与吗啡的季盐也有强力的粘合作用。


And Ordovician and Cambrian, Quaternary of the people who hailed from a fight.

和奥陶纪、寒武纪、第四纪的生灵们打个招呼。


Design of quaternary Schmitt circuits.

四值施密特电路设计。


In the overlap part of the right side of two main faults,the left-lateral strike-slip movement of them in Quaternary has formed the embryonic rhombochasm.

在两条主要左行走滑断裂的右侧叠覆区,两条主断裂第四纪的左行走滑运动产生一个胚胎期的菱形断陷。


In the overlap part of the right side of two main faults, the left-lateral strike-slip movement of them in Quaternary has formed the embryonic rhombochasm.

在两条主要左行走滑断裂的右侧叠覆区,两条主断裂第四纪的左行走滑运动产生一个胚胎期的菱形断陷。


Previous research has concluded that biogenic gas of the Sanhu region is generated from Quaternary humic source rock.

在以前的研究中柴达木盆地三湖地区生物气一直被认为是完全由第四系腐殖型有机质所生成的。


Currently there are several sorts of antibacterial polymers such as polymers containing heavy metal cations, pyridinium and quaternary ammonium salt polymers, and N-halamine .

在众多类型的抗菌高分子材料中,卤胺型的抗菌高分子材料由于其独有的可再生性能及广谱的抗菌性,受到学术界的广泛关注。


In the groundwater balance approach, the transform amount is calculated by constructing a balance equation mainly of Quaternary phreatic groundwater.

在地下水均衡法计算中,主要通过建立第四系孔隙潜水均衡方程来求取转化量。


By applying above methods, satisfying effects have been achieved during the exploration of shallow biogenic gas in late Quaternary strata of Hangzhou Bay area.

在杭州湾地区晚第四系浅层生物气藏勘探中,这些方法在识别第四纪地层基底、划分岩性岩相、预测储层和天然气层等方面取得了较好的应用效果。


It is well known that the preparing process of the PSC adduct is based on the phase diagram of the quaternary system: Na2SO4+ NaCl + H2O2+ H2O.

在此基础上,应用Pitzer模型对Na_2SO_4-H_2O_2-NaCl-H_2O四元体系及其所包含的三元子体系Na_2SO_4-NaCl-H_2O、N助50;


In neutral solution a quaternary complex of aluminium can be formed in red colour with NaF, xylenol orange(XO) and cetylpyridine bromide.

在氟化钠、二甲酚?~(XO)及溴化十六烷基吡啶(CPB)存在的近中性溶液中,铝可形成红色的组成比为Al:F:XO:CPB=1:2:1:1的Al-F-XO-CPB四元络合物。


Based on solid phosphoric acid catalyst (SPAC) T 49 composed of Si P B ternary system a new SPAC T 99 composed of Si P B D quaternary system was developed.

在硅-磷-硼三元体系的T-49固体磷酸催化剂基础上,开发了硅-磷-硼-D四元体系的T-99固体磷酸催化剂。


During Quaternary period, the gulch-gold mines are eventually formed with the action o...

在第四纪,在冰川和径流作用下最终形成了砂金矿床。


County geological formation exposed by geological era, there are 7 lines (JI), the Sinian, Cambrian, Ordovician, Silurian, Cretaceous, Tertiary, Quaternary.

地质县境地层出露按地质年代,有7个系(纪),即震旦系、寒武系、奥陶系、志留系、白垩系、第三系、第四系。


The quaternary period of geologic time extends from the end of the tertiary period to the present.

地质时期中的第四纪是从第三纪一直到现在。


Industries based on brainwork or knowledge are called the quaternary industry.And thus the concept of the cultural industry emerged and gradually matured.

基于脑力劳动或知识发展的产业就称为第四代产业,文化产业这一概念也因此出现并逐渐成熟。


A new type of surfactant,consists of quaternary ammonium salt and polyethylene glycol side chain,with a high phasetransfer catalytic ability.

多甘醇单甲醚季铵盐是一种同时含氧乙烯链及季铵盐的新型表面活性剂,它具有良好的相转移催化能力。


China's Datong group of volcanic Quaternary volcanic one of the group.

大同火山群是我国第四纪火山群之一。


Sun Jianzhong and Zhao Jingbo. 1991. Quaternary of Loess Plateau in China. Beijing: Science Press. 128.

孙建中,赵景波.1991.黄土高原第四纪.北京:科学出版社.128.


It has unique evidence of glaciation during the Quaternary Period and is the birthplace of China's glaciological theory.

宋代理学大师朱熹在此提出的教育思想成为中国古代教育的准则,在世界教育史上也有重要影响。


Practically all industriall important cationics are fatty nitrogen compounds and many are quaternary nitrogen compounds.

实际上工业中所有的重要阳离子表活剂都是含氮化合物,其中许多是季铵盐类化合物。


Study of the experimental data indicated that the quaternary system exhibited a well-situated property at morphotropic phase boundary(MPB).

实验数据表明:组成在准同型相界处压电陶瓷的综合性能达最佳。


The results showed that the antimicobial activity of single-substitute quaternary ammonium salts of chitosan were lessen than that of the binay-substitute derivatives.

实验结果表明,单取代壳聚糖季铵盐抗菌活性弱于双取代壳聚糖季铵。


Three demonstrations of this method for the determination of mixed metal ions, such as binary ternary and quaternary, are given.

对二、三和四元混合样品进行了上百次测定,测定结果达到化学分析准确度要求。


O-or N-alkylation was carried out directly by simple heating the mixture of carboxylic acid or amine with quaternary ammonium salt.

将羧酸或胺类化合物与季铵盐进行简单的混合加热,便可直接得到O-或N-烷基化产物。


The Pliocene sediments are characterized by larger variations of Ce anomaly and more significant Eu depletion than the Quaternary sediments.

岩芯中上新统沉积物中Ce异常变化大,而Eu亏损相对第四系沉积物更显著。


The Tertiary Manganese depostisof Guangxi Province were wrongly recognized in the past as the products of the Gufeng Formation of Permian or Quaternary period.

广西第三纪锰矿过去被误划为下二迭统孤峰组或第四纪锰矿。


IS THERE REALLY QUATERNARY GLACIATION ON LUSHAN?

庐山真的有第四纪冰川吗?


The paper suggests doing more work on the active fault that controls the Caobo Quaternary depression.

建议对控制草泊第四纪凹陷的活动断裂开展调查。


Optical properties of doped quaternary ammonium salt KDP crystals[J].

引用该论文 许心光,孙洵,王正平,许贵宝,高樟寿,邵宗书.


Quaternary Phase Encoding and Decoding of Ultrashort Pulses at 40 Gb/s[J].

引用该论文 陈小刚,元秀华,黄德修.


Optimum Al Composition Analysis on AlGaInP Quaternary Double Heterojunction Light-emitting Diodes[J].

引用该论文 陈贵楚,范广涵,陈练辉,刘鲁.


York, J. E. (1976) Quaternary faulting in eastern Taiwan. Bull. Geol. Surv. Taiwan, No. 25, 63-72.

张徽正、林启文、陈勉铭、卢诗丁,1999,台湾活动断层概论,经济部中央地质调查所特刊第十一号。


Recent and future hypotheses about global change will undoubtedly provide a new direction for Quaternary Research through the world.

当前中国第四纪研究的许多关于全球变化问题的科学假说,将开辟一个第四纪研究的新时代。


A great many proteins, especially enzymes, are oligomeric and consequently possess quaternary structure.

很多蛋白质尤其是酶类,是低聚物,因此拥有四级结构。


Reportedly, the site is mainly underlain by alluvial deposits of Quaternary Age comprising sand and clay.

据报道,站点由主要强调包括沙子和黏土的四个一组的年龄冲积层。


Abstract Shennongjia located in central China is an important area to study Quaternary geology.

摘 要 神农架是中国第四纪地质环境演变的热点地区之一。


Abstract: The effects and mechanisms of sodium chloride on the flotation of diaspore and pyrophyllite with the cationic quaternary ammonium DTAL as a collector were studied.

摘 要: 采用季铵盐DTAL作捕收剂,研究了氯化钠对一水硬铝石和叶蜡石浮选的影响及其作用机理。


Abstract: With the wide application of computers and the development of quaternary paleoenvironment studies, many numerical techniques are used in the spore-pollen analysis.

摘 要:运用多种数学方法分析孢粉资料定量重建古环境已成为第四纪古环境研究的一个发展趋势。


Abstract]Objective:To study the effects of quaternary ammonium salt derivative of haloperidol(F2)on experimental arrhythmia induced by barium chloride(BaCl2).

摘要]目的:研究氟哌啶醇季铵盐衍生物(F2)抗实验性大鼠心律失常的作用。


The Chinese Quaternary Research Committee was established 50 years ago, and over the years its approach and goals have changed into a new epoch.

摘要中国第四纪研究委员会成立50年来,第四纪科学已进于一个新的后第四纪研究时代了。


The Danba Sopo deposits, a huge Quaternary accumulation of soils and rock blocks, are distributed in the banks of Dadu River near Houziyan hydropower dam.

摘要丹巴梭坡堆积体是一巨型第四纪堆积体,分布在大渡河的左右两岸,其上有114座珍贵藏碉。


In this paper experiments of image segmentation on Quaternary strata are made on RS image by morphologic methods.

摘要利用数学形态学的方法对遥感影像的第四系地层进行了影像分割实验。


Dialkyl quaternary ammonium salts can be used as fabric softeners with high performance, their biodegradation can be improved by inducing unsaturated bond into their alkyl chain.

摘要双烷基季铵盐类产品是一种性能优良的织物柔软剂,如果在烷基链中引入不饱和键,就会提高其生物降解性。


The foundation of gated-weir of the Wanbahe Power Station is located on Quaternary deposit which is soft.

摘要湾坝河水电站闸基坐落在第四纪砂砾石覆盖层上,属于软基上建闸。

用作形容词(adj.)

The Quaternary sediments are largely undeformed.
第四纪的沉积物大部分未变形。

Industries based on brainwork or knowledge are called the quaternary industry.
以脑力劳动或知识为基础的产业被称为第四产业。