In the second part, rare earth polymercomplex photochromic materials were synthesized and applied.
本论文第二部分对稀土配合物光致变色材料进行了合成及应用研究。
2
BPA is commonly used in food and drink packaging, where the molecule is usually locked in as part of a complexpolymer.
双酚a一般用于食品和饮料包装，其分子作为复合聚合物的一部分，通常是固定的。
3
Microbiogen USES dilute sulphuric acid to break down another component of the plant cell wall: a complexpolymer called hemicellulose, which binds cellulose microfibres together.