1.The final yarn structures in composites have changed comparing with those in the preforms after which are impregnated with matrix and consolidated into the final shape.
与预制件相比，复合材料内部的纱线结构发生了变化，这种变化也体现在纤维体积分数以及其它结构参数上。
2.The series could handle 1-litre mineral water bottle preforms from 16 to 48 cavities.
该系列可处理一公升的矿泉水瓶瓶坯，从16日至48溶洞。
3.This paper introduces the fabrication technology for knitted preforms. In-plane and out-of-plane Mechanical properties are studied which are compared with those of woven composites.
本文介绍了针织复合材料预型件的制造工艺：研究其面内和面外力学性能：并与机织复合材料进行了比较。
4.The results indicated that by HIPing porosities in the preforms can be closed and the densities can be increased, then the strength and ductility can be improved.
结果表明，热等静压处理可以闭合坯件内的疏松孔洞，提高合金致密度，进而提高合金的强度和塑性。
5.The production of three dimentional spherical reinforced preforms by means of one-side-sewing technology is presented.
介绍了通过单面缝纫技术生产三维球面增强预型件的方法。
6.In this paper, densification laws of rotary forging powder sintered preforms and the property of components have been investigated with orthogonal experiment method.
本文利用正交实验等方法在自行设计的实验装置上对粉末烧结体的摆辗致密规律及压实体的性能进行了研究。
7.Injection moulding of bottle CAPS is distinctly different from that of preforms in that it is thin-wall moulding.
与瓶坯注塑截然不同，瓶盖的注塑是薄壁注塑。