engineering plastics

• 工程塑料

engineering plastics的用法和样例：

例句

1. The shell is model with engineering plastic.
   外壳采用工程塑料模压成型。
2. The accurate measure assures the engineering plastics coloring procession going smoothly.
   精确的计量保证了工程塑料的着色也可安心地进行。