英语语法分析

Contains biocide to extend fluid life.

含有杀菌剂以延长切削液使用寿命。

The development and application of QS—11 biocide are simply described.

介绍了非氧化型杀菌剂QS— 11的研制及工业应用情况。

Study shows that the effectiveness of a compound biocide is better, and the dosage used to be small.

研究表明，复配杀菌剂的杀菌效果好且用药省。