preform

1. The superior preform of composites is a basic requirement and one of key factors for fabricating superior properties composites.
   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。
2. 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。
3. Compared with optical fiber, optical fiber preform is characterized by its bigger size, so the measurement method for its refractive index profile has uniqueness.
   光纤预制棒相对于光纤而言，由于其尺寸大的特点，折射率分布的测量方法具有独特性。
4. The knitting process and the structure design of warp net preform with large openings are investigated.
   研究了玻璃纤维经编网格织物的结构设计与编织工艺。
5. Condensate will leave marks on the preform surface.
   露水会遗留痕迹在瓶坯的表面上。
6. The decisions are taken preform.
   决议形式上被接受了。
7. The improved fabric crease recovery angle's method is carried on the experiment to observe the different specification's preform carbon fiber fabric's bulging reply performance.
   通过改进的织物折痕回复角测试方法，对不同规格的预定型碳纤维织物的折皱回复性能进行了实验观察。
8. Permeability prediction of fabric preform using homogenization method
   用均匀化方法预报平纹织物的渗透率
9. Abstract: Forging quality and technical economic benefit of plastic working industries strongly depend on preform sequence and preform design.
   文摘：锻件质量和锻造行业的技术经济效益很大程度上取决于预成形工步和预成形设计。
10. 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。
11. This preform is then heated to a temperature just below the melting point of the alloy.
    此时，将初步加工的成品加热到一定的温度，这个温度要刚刚低于合金的熔点。
12. Influence of 3D Woven Preform Architectures on Mechanical Properties of C/ C Composites
    三维机织预制体结构对C/C复合材料力学性能的影响
13. Numerical Simulation of Isothermal Unsaturated Infiltration of Liquid Aluminum into Fiber Preform
    液态铝在纤维预制体中非饱和浸渗的数值模拟
14. Depending on your application, the preform flux may be included internally or externally.
    根据用户的应用情况，预成型件焊剂可以内置或外加。
15. A method for detecting the edge of deposit preform by two Zernike moments operators with different mask was presented.
    喷射成形是一种近终形材料加工技术，针对管状沉积坯的成形过程进行了模拟。
16. Effect of Different Preform Process on the Mechanical Properties of Flax/ PP Thermoplastic Composites
    不同预型件工艺对亚麻/聚丙烯热塑性复合材料力学性能的影响
17. The core rod section with the deposited soot overcladding is consolidated to obtain a finished optical fiber preform.
    芯棒段和沉积灰渣外包层被固结以形成制成的光纤预制件。
18. Infiltration and Macrosegregation of Al-Cu Alloy in the Porous Preform by Centrifugal Force
    多孔预制件内Al-Cu合金的离心渗流和宏观偏析研究
19. Study on Composition and Processing of C/ C Composite Brake Disc with Random Fiber Preform
    C/C刹车盘用短纤维预制体组成及工艺研究
20. 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。
21. Their preform moulds could be 2-cavity based and use a hot plate or hot runner design.
    模具有用两腔的，采用热板/热流道设计。
22. A New Method of Preform Design Based on 3-D Electrostatic Fields
    一种基于三维静电场模拟的预制坯设计新方法
23. The Bakelite resin could be compression molded from a loose powder or compressed into a preform, then molded.
    胶木（即酚醛树脂）可从松散的粉末压缩模塑或先压缩预制成型，然后模塑。
24. Centrifugal infiltration process of tubular porous preform by a Binary Alloy
    二元合金在管形多孔预制件内的离心渗流过程
25. 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。
26. Application of New Type Evaporator in Optical Fiber Preform Fabrication fibre-optic rod multiplexer-filter
    新型蒸发器在光纤预制棒生产中的应用
27. A taper tower is used to modify the structures of the fiber preform, and four steps of fiber fabrication and different structures of fiber samples are given.
    利用了一台光纤拉锥塔来改造光子晶体光纤预制棒，采用四步法来制作不同结构的光子晶体光纤，其中一种紧邻双芯光子晶体光纤被作为样品进行了细致研究。
28. Optimal Preform Die Shape Design through Controlling Deformation Uniformity and Deforming Force in Metal Forging
    控制锻件变形均匀性和变形力的锻造预成形多目标优化设计
29. 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。

verb

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

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