The main reinforcing rib is protected against being destroyed in the processing and applying process, thereby enhancing the ring stiffness of a straight ribbed pipe wound by glass-reinforcedplastics.
保护了主加强肋在加工应用过程中不会受到破坏，从而提高塑钢缠绕直肋管的环刚度。
2
Stress corrosion cracking of unidirectional TWINTEX yarn reinforcedplastics was investigated and compared with that of unidirectional glass fibre reinforcedplastics.
研究了TWINTEX纤维增强塑料在酸中的应力腐蚀，并与玻璃纤维增强塑料的应力腐蚀进行了比较。
3
The initial work centered on the defence USES of glassreinforcedplastics such as aircraft radomes and boat hulls.