Liquid crystalline polymer has the highest strength and modulus. Nowadays it is well known as super engineering plastics.
液晶高分子材料具有相当高的强度和模量，被誉为当代超级工程塑料。
2
As every branch of science, polymer science and engineering has gone through its infant stage and become an important part of science and technology.
与每个科学分支一样，高分子科学与工程已经走完了它的初始阶段，并成为科学和技术的重要部分。
3
Expound main features, welding procedure and application of high purity and super purity stream-conveying in semiconductor, pharmaceutical and biology Engineering of polymer pipeline.