英语语法分析

The impurities removing in production of sodium hypophosphite is focused in the paper.

重点论述了次磷酸钠工业生产中的杂质去除问题。

Acid electroless nickel phosphorus plating on PZT ceramic was studied with hypophosphite as a reducing agent.

以次亚磷酸钠为还原剂，在压电陶瓷表面进行酸性化学镀镍磷。

Based on catalyzing hypothesis of sodium hypophosphite, we explored and studied a non-phosphorus catalyst---sodium nitrilotriacetate.

依据次磷酸钠在体系中的催化作用开发和研究了无磷催化剂氨三乙酸钠。