1、 Chitosan as a efficient and cheapness crude macromolecular flocculation exist many problems.
壳聚糖作为一种高效,廉价的天然高分子絮凝剂,它也存在着自身的问题.
来源:互联网
2、 The growth mechanism of macromolecular crystals in faced with a wonderful developing opportunity.
生物大分子晶体生长机理的研究面临极好的发展机遇.
来源:互联网
中