英语语法分析

EDTMPS shows better antiscale effects to calcium sulfate and barium sulfate.

EDTMPS对硫酸钙、硫酸钡垢的阻垢效果好。

Seeing that ion exchange process for treatment of boiler feed-water is of high cost and difficult to master, composite antiscale KH- 209 is developed and prepared.

针对采用离子交换法处理锅炉用水时费用高且技术难以掌握等问题，研制开发了KH-209复合阻垢剂。