preform的例句大全

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.

The optimization preform shape checked by forward operation and the results show that the variation of effective strain trend to uniform, the forming force and the effective stress are decreased. 4 、 The study of multilayer metal die.

通过对优化结果进行检验，可以看出优化后的模型变形更加均匀，使得终锻模的等效应力和成形所需的动力均有所减小。4、多层金属热锻模的研究。

The design principle of preform structure and the formation technology of three kind of preform are included for carbon-carbon composites nozzle exit cone ( CCEC), the influence of the preform structure upon the properties of CCEC is also discussed.

介绍了喷管炭/炭材料出口锥（CCEC）预制体结构的设计原则、3种预制体成型技术，并简要讨论了预制体结构对炭/炭出口锥材料性能的影响。

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

The modification of beam deflective method for measuring refractive index profile of a fiber preform

测光纤预制棒折率射分布的光束偏折法的改进

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。