生物地理省;
In this article, intercomparsion of several different vegetate materials was discussed from contaminations release, growth potential, biotic province and improvement effects of water environment.
从物质释放、植物生长势、生物区系和水质改善效应四个方面考虑对不同基质材料进行了比较实验研究。
简答网 · 高考英语
简答网 · 考研英语