preform单词基本解析：

vt.预先形成n.粗加工的成品
vt. 预先形成, 预制 n. 预成型件, 雏形
vt.预先形成；

preform变化用词：

第三人称单数:preforms;过去式:preformed;过去分词:preformed;现在分词:preforming;
动词过去式: preformed | 动词过去分词: preformed | 动词现在分词: preforming | 动词第三人称单数: preforms |
过去式：preformed过去分词：preformed现在分词：preforming第三人称单数：preforms

preform英英释义：

Verb

1. form into a shape resembling the final, desired one

2. form or shape beforehand or determine the shape of beforehand

动词 preform:

form into a shape resembling the final, desired one

form or shape beforehand or determine the shape of beforehandpreform[ pri:'fɔ:m ]v.form into a shape resembling the final, desired oneform or shape beforehand or determine the shape of beforehand

preform中文词源：

preform用法和例句：

The fabric is used as preform for thermoplastic textile - reinforced composite modules.

这种织物被用作热塑性纺织增强复合材料模件的预型件.

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Two Methods: Used to liquid impregnate carbon fiber preform are introduced.

介绍了液相浸渍炭纤维坯体的两种方法.

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Most preform moulds are rectangular and are longer than they are wide.

大多数的瓶坯模具呈长形,就是长度比阔度大.

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Precise preform loading system in order to minimize failure rate.

高可靠性的进坯、上坯、出坯系统、使吹瓶机故障率降到最低.

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Major in PET preform mould, cap mould and blow mould.

专业生产瓶坯模具, 瓶盖模具和吹瓶模具.

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Knowledge on plastic material and quality control on preform manufacturing.

具备塑料和瓶胚生产品控的知识.

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Bottle weight , which is the same as preform weight, is essentially non - adjustable.

瓶子的重量(壁厚)相当于瓶坯的重量, 而后者基本上不能调整.

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Condensate will leave marks on the preform surface.

露水会遗留痕迹在瓶坯的表面上.

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But they also reported that not all green roofs preform perform equally well.

但是他们也报告了不是所有的绿色屋顶都做得同样的好.

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A preform shape can be gained with backward simulation from the final bladeshape based on FEM.

为此,本文介绍了有限元反向模拟的基本步骤,综述了确定反向模拟中边界节点脱模准则的方法.

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An algorithm of three - dimensional braided composite material preform image processing based on mathematics morphology is presented.

提出一种基于小尺度的数学形态学的三维编织复合材料预制件图像的边缘检测方法.

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Transverse feeding of molten metal in continuous fiber preform was investigated theoretically and experimentally.

研究了金属液在连续纤维预制型中的横向补缩.

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An 8 - cavity preform mould costs more than the injection moulding machine that holds it.

八腔以上的模具价钱比注塑机还要高.

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In the injection stretch blow moulding process, injection moulding machine is used to make the preform.

注拉吹工艺先用注塑机注出瓶坯.

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AZ 91 magnesium preform with complete shape prepared using spray forming technology under protective atmosphere.

在保护气氛中采用喷射成形制备技术制备了形状完整的AZ91镁合金沉积圆柱坯.

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preform

The wall thickness of a 1-litre bottle preform is 3mm. The cooling time is 10.8s.

1公升的矿泉水瓶瓶坯壁厚3mm，冷却时间便占10.8秒。

2.5-D preform

2.5维预制体

In 2001, TFO started the manufacturing of single mode fibre preform.

2001年TFO光棒项目顺利投产，成为中国第二家光纤预制棒生产商。

The wall thickness of a 5-gallon bottle preform is 8mm. The cooling time is 76.8s.

5加仑瓶瓶坯壁厚8mm，冷却时间是76.8秒。

C/C preform

C／C坯体

Keywords SiC_p/LY12 vacuum pressure infiltration preform low volume fraction of particles;

LY12复合材料;真空压力浸渗法;预制件;低体积分数;

PET preform inject and blowing-stretching machine. Mould plastics machine

PET注坯机及吹瓶机,注塑机

SiC preform

SiC预制件

SiO2 fibre-optical preform

SiO2光纤预制棒

Optimization CAD of the preform structure of 3D woven composites

三维机织复合材料预制件结构优选cad

3D woven preform

三维机织预制体

Keywords three-dimensional braiding;preform;unit-cell;volume fraction;

三维编织;预成型件;单胞;体积含量;

Research on the surface image of three-dimensional braiding composite preform

三维编织复合材料预制件表面图像技术的研究

Analysis System on Surface Image of Three Dimensional Braiding Composite Preform

三维编织复合材料预制件表面图象计算机分析系统

3-D braiding preform

三维编织织物

Keywords 3-D braiding preform;digital image processing;texture;automatic measure;

三维编织织物;数字图像处理;纹理;自动测量;

3D braided preform

三维编织预制件

Regardless of your loction or requirements, let Kester tailor a preform solution thats right for your application.

不管您在哪里,不管您有怎样的要求,凯斯特公司都可以为您定制一个完全适合您的用途需求的预成型件解决方案。

The factory specializes in manufacture of CM series fully automatic,semiautomatic bottle blowing machines, injection and blow mould, PET bottle preform and cap of various specifications and space cup etc with famous Brand LONHON.

专业生产“龙宏”牌CM系列全自动、半自动吹瓶机、注吹模具、太空杯以及各种PET瓶坯，塑料防盗盖等相配套产品。

Major in PET preform mould,cap mould and blow mould.

专业生产瓶坯模具,瓶盖模具和吹瓶模具.

In order to solve the two difficult problems of 3D weaving in the 3D woven thermoplastic composites and of resins impregnating the 3D preform, the micro-braided yarn is developed and studied.

为了解决三维机织热塑复合材料中三维机织预型件的织造和热塑基体浸入预型件这两大难题,开发了织造预型件的微编纱。

A preform shape can be gained with backward simulation from the final blade forged shape based on FEM.

为此,本文介绍了有限元反向模拟的基本步骤,综述了确定反向模拟中边界节点脱模准则的方法。

Original control principle of hydraulic and electric system have been changed in de-sign of equipment to avoid defects such as folding, burning etc produced in upsetting of large air valve preform.

为防止大气门毛坯在热镦粗过程中产生的折叠、烧等缺陷,在设计设备时改变了原有的液压控制和电气控制原理。

This paper introduces basic principle about anal ysis system of surface image of 3-D braiding composite preform.

介绍了三维编织复合材料预制件表面图像检测与纹理分析的基本原理。

Two methods used to liquid impregnate carbon fiber preform are introduced.

介绍了液相浸渍炭纤维坯体的两种方法。

cooling the preform mould by chiller instead of water tower could reduce the cycle time by 10%.

以冰水冷却瓶坯模具比水塔水冷却缩短冷却时间10%

All data standard indication for 0.6L. Output depends upon bottle shape and preform quality. Specifications are subject to change without notice.

以生产0.6L瓶的基本耗气量。产能依据瓶型及瓶胚之要求而变化。规格变更，恕不另行通知。

A new sensitivity analysis method for preform die s hape design in metal forging by controlling the deformation uniformity is develo ped.

以直接设计预成形模具形状为目标，提出并建立了一种控制变形均匀性的灵敏度分析理论和模具形状优化设计方法。

But they also reported that not all green roofs preform perform equally well.

但是他们也报告了不是所有的绿色屋顶都做得同样的好。

fibre preform

光纤预制件

Optical fiber preform

光纤预制棒

Requirements of Mass Flow Controller in Fiber Preform Fabrication

光纤预制棒生产对质量流量控制器的要求

An 8-cavity preform mould costs more than the injection moulding machine that holds it.

八腔以上的模具价钱比注塑机还要高。

eutectic preform

共晶合金盘料

Keywords three-dimensional fabric;preform of composite meterial;weaving;two-step braiding;the combination of weaving and braiding;new structure;

关键词三维织物;复合材料预制件;机织;二步编织;机织与编织相结合;新结构;

Study on preform design for typical die forging

典型模锻件的预锻设计方法研究

Kester can create a wide variety of preform shapes such as washers, disks, pellets, collars, ribbon forms, rings and wireforms.

凯斯特可以制造各种各样的预成型形状,如垫圈形、圆盘形、球粒形、轴环形、带状、环形以及线形。

Microstructures of the preform and the composite were analyzed under SEM and TEM.

利用SEM和TEM等方法对晶须预制块和复合材料进行了微观组织结构分析。

A Ni base superalloy columnar preform were produced through nitrogen spray atomization and deposition.

利用氮气雾化喷射沉积技术成功地获得了宇航用变形镍基高温合金柱形坯。

The extrudate shape,dimension and output can be effectively controlled on single roller extruder with its variable screw and roller speeds and the flexible combination of preform die and final die.

单辊筒口型挤出机通过变更挤出机螺杆和辊筒转速及灵活的预成型口型和终端口型设计组合可以有效控制挤出物的形状、尺寸和生产率。

Calculation of the fabric volume fraction for three-dimensional braiding preform based on parameterized cell models

参数化单胞计算三维编织预制件纤维体积含量

HuiYuan mould Industry have been concentrate on researching and manufacturing PET preform mould, b...

发布者：徐卫萍所在地：浙江台州市行业：机械及行业设备职位：外销员工作年限：二年以上

Weaving Design of Tubular Multilayer Woven Preform with Changeable Cross-section

变截面管状机织增强材料的织造设计

The preform performance of CCCs are predicted by establishing the model of macro-mechanical properties of CCCs related to fine structure parameters of fiber preform.

可通过建立CCCs宏观力学性能与预制体细观结构参数之间的模型预测其结构性能。

Meanwhile, the main attention is focused on preform design, and the proper preforming mold is designed.

同时，模具设计重点从预成形设计考虑，给出了合理的制坯模具设计。

Restoration and Conservative Treatment of Vertical Fracture in Posterior Teeth with Preform Metal Crown

后牙纵折的予成金属冠修复保存治疗

Preform Technology of Carbon-carbon Composites Nozzle Exit Cone

喷管炭-炭材料出口锥预制体技术

Preform of College English tests

四、六级改革

APPLICATION OF IMAGE PROCESSING TECHNOLOGY TO DETECTING THE EDGE OF DEPOSIT PREFORM IN SPRAY FORMING

图像处理技术在喷射成形沉积坯边缘检测中的应用

It is prerequisite to measure the three-dimensional braided composite materials preform s technical parameters in the process of its design and production.

在三维编织复合材料预制件的研制和生产过程中，需要测量和分析材料的工艺参数。

Tooth form of preform die is important for improving the filling of gear teeth using a lower forging loadin the two-stage cold precision forging process of spur gears.

在直齿圆柱齿轮两步成形冷精锻工艺中,预锻模具齿形设计对改善材料填充性能,降低成形载荷具有重要意义。

Carbon fiber/aluminium preform wires were fabricated by the liquid metal infiltration method after carbon fiber were coated with SiC ard treated with K_2ZrF_6 solution.

在碳纤维表面用CVD法涂覆碳化硅涂层,接着用K_2ZrF_6溶液处理,干燥后通过700℃的熔融铝制得碳/铝复合丝。

Preform Optimization of Die Forging Process of a Turbine Wheel Based on Rigid Visco-plastic FEM Simulation

基于刚粘塑性有限元模拟的汽轮机叶轮模锻的预成形优化

OPTIMAL PREFORM DIE SHAPE DESIGNTHROUGH CONTROLLING UNIFORMITY DEFORMATION OF FORGING IN METAL FORGING

基于变形均匀性的锻造模具形状优化设计方法

Integration of Preform Optimization Design System in Forging Process Based on Deform Uniformity

基于变形均匀性的锻造预成形优化系统集成

The Optimum Preform Design and Redesign Based on Neural Network Response Surface Methodology

基于神经网络响应曲面的预锻模具形状优化与再设计方法

preform mo(u)lding

塑坯模制法

Keywords liquid composite molding;tackified preforms;tackifier;tackified fiber preform;

复合材料液体模塑成型;预成型体;增粘剂;纤维预成型技术;

preform of composite meterial

复合材料预制件

Keywords multi-factor coupling physical fields CVI;carbob/carbon composites;preform density;densification;microstructure;

多元耦合物理场CVI;炭/炭复合材料;毡体密度;增密;结构;

Optimal Preform Die Shape Design in Multi-cavity Forging Process

多型腔锻造过程预锻模形状优化设计

porous preform

多孔预制体

Multi-cavity preform moulds do not use the cold runner design. An often-used design for the runners is hot plate design.

多腔的瓶坯模具都不采用冷流道的。较简单的流道是热板设计。

Most preform moulds are rectangular and are longer than they are wide.

大多数的瓶坯模具呈长形，就是长度比阔度大。

Finite element simulation of hot die forming and optimization design of preform for a blade with large-angle crankle

大弯扭叶片热模压成形有限元模拟及其预制坯的优化设计

The practice proves the reverse simulation technique is a very efficient approach to optimize the preform design.

实践证明,反向模拟技术对于预成形优化设计是一种非常有效的方法。

Audit and validate all of Jinan's production and QC data to ensure compliance of our incoming QC requirement necessary for outgoing QC acceptance and overall preform quality compliance.

审计和验证所有济南工厂的QC数据，以确保我们的生产品控检验符合出货品控检验接受标准和其他所有的瓶胚质量标准要求。

Customer authorize Vector-Myung to preform data recovery service on customer's device.

客户授权韩新数据恢复为客户所交付之设备进行数据恢复。

Cooling time dominates cycle time in thick-wall moulding like preform moulding .

属厚壁注塑的瓶坯，冷却时间支配着周期时间。

PREFORM DESIGN OF FORGING TRACK LINK IN ENGINEERING MACHINES

工程机械履带链轨节的锻造预成形设计技术

FE simulating study on thermal differential mouldless preform forging

差温无模预成形锻造的有限元模拟研究

stress application preform

应力棒

profiled preform

异形截面预制件

preform invoice

形式发票

Temperature distribution of microstructure fiber preform during fiber drawing

微结构光纤预制棒拉制过程的温度场分布

Keywords Squeeze casting;Preform;Particulate;Metal matrix composite;

挤压铸造;预制块;颗粒;金属基复合材料;

Multi-objective optimization of the preform design by controlling the shape and deform uniformity of forging

控制形状和变形的锻造预制坯多目标优化设计

Keywords doped fluoride glass optical fiber;small core preform;rotational casting;

掺杂氟化物玻璃光纤;小芯径预制棒;旋转浇铸法;

An algorithm of three-dimensional braided composite material preform image proce ssing based on mathematics morphology is presented.

提出一种基于小尺度的数学形态学的三维编织复合材料预制件图像的边缘检测方法。

Abstract: The influence of adding titanium on the wettability of molten copper on the surface of C/C composites preform was investigated by spreading and infiltrating experiment.

摘 要: 通过铺展实验和渗透实验考查添加钛对铜与C/C复合材料润湿性能的影响。

用作及物动词(vt.)

The superior preform of composites is a basic requirement and one of key factors for fabricating superior properties composites.
摘要高质量复合材料预制块是获得高性能复合材料的基本要求和关键要素之一。

An algorithm of three-dimensional braided composite material preform image proce ssing based on mathematics morphology is presented.
提出一种基于小尺度的数学形态学的三维编织复合材料预制件图像的边缘检测方法。

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