上船

It is a law-abiding least of all company grandly.

盛大是一个最不安分的公司。

So, how to seek some materials to guarantee its mechanical property and improve light fastness has been the hot point.

寻找一种适宜的添加物，既能保证它的力学性能，又能提高它的光稳定性，已经成为当前研究的一个热点。