聚丙烯膜的英文：
polypropylene film

The float is a chemical resistant polypropylene casing with a firmly bonded electrical cable protruding.
浮球采用抗化学物质腐蚀的聚丙烯外壳，配置坚固保护的电缆接头。

By the high-energy radial, acrylic monomer is grafted on the surface of polypropylene filler.
应用高能射线辐照技术，在聚丙烯填料表面接枝丙烯酸单体进行改性。

The unsafe materials are widely used in place of polypropylene, which should account for up to about80 percent of the product for it to be safe.
这些有问题的物质以广泛用于取代聚丙烯成分，而若要成为安全合格的产品，则应含有大约80%聚丙烯。

And it’s also put forward that China must research on and develop specialty polypropylene products by expanding the application areas.
指出我国应结合应用的领域开拓与变化,更多地研究开发专用聚丙烯产品。

Sliding seals require a nuique resilence due to the directional forces which they are subjected to. Polypr-opylene is well selected to cope with this aggressive requirement.
聚丙稀是最好的选择去应付那独一无二的正向受压，又密封滑动的情况而保持竖直不变形的物质。