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.

與預制件相比，復合材料內部的紗線(xiàn)結構發(fā)生了變化，這種變化也體現在纖維體積分數以及其它結構參數上。

2.The series could handle 1-litre mineral water bottle preforms from 16 to 48 cavities.

該系列可處理一公升的礦泉水瓶瓶坯，從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.

本文介紹了針織復合材料預型件的制造工藝：研究其面內和面外力學(xué)性能：并與機織復合材料進(jìn)行了比較。

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.

結果表明，熱等靜壓處理可以閉合坯件內的疏松孔洞，提高合金致密度，進(jìn)而提高合金的強度和塑性。

5.The production of three dimentional spherical reinforced preforms by means of one-side-sewing technology is presented.

介紹了通過(guò)單面縫紉技術(shù)生產(chǎn)三維球面增強預型件的方法。

6.In this paper, densification laws of rotary forging powder sintered preforms and the property of components have been investigated with orthogonal experiment method.

本文利用正交實(shí)驗等方法在自行設計的實(shí)驗裝置上對粉末燒結體的擺輾致密規律及壓實(shí)體的性能進(jìn)行了研究。

7.Injection moulding of bottle CAPS is distinctly different from that of preforms in that it is thin-wall moulding.

與瓶坯注塑截然不同，瓶蓋的注塑是薄壁注塑。

8.On the simultaneity, the actual shape of the yarns in performs was observed, which will be beneficial to the foundation of the cell modal in preforms.

同時(shí)，通過(guò)實(shí)驗觀(guān)察了預成型件中紗線(xiàn)的實(shí)際形態(tài)，為三維六向編織預成型件單胞模型的建立奠定了一定的基礎。

9.Some problems of design for powder hot forging die have been discussed around the characteristics of forging deformation of powder preforms.

圍繞粉未燒結體鍛造變形的特點(diǎn)，討論了粉末鍛造模具設計的若干問(wèn)題，并對一些粉末鍛造模具進(jìn)行了分析。