A firefighter was overcome by fumes at a blaze in a plastics factory.一名消防队员在一家塑料厂的火灾中被烟熏倒了.In the artical, fire retarding methods for plastics are simply introduced.本文简要介绍了塑料的阻燃方法.The color deviation is a very important ...
If you build more plastics into cars, the car lasts longer.如果汽车采用更多塑料元件，寿命会更长一些。The superglue may not create a bond with some plastics.强力胶水可能无法粘住某些塑料。Over the past forty years plastics have revolutionised the way we live...