英语语法分析

The method uses the bi-(trichloromethyl methyl) carbonate to replace phosgene so as to greatly reduce the safety and environmental protection risks from the source;

该方法用双（三 氯甲基）碳酸酯替代光气，从源头上大大降低了安全和环保隐患；

Eight substituted ureas herbicides were synthesized with bis(trichloromethyl) carbonate(BTC). The production structures were identified by elemental analysis and IR.

用二（三氯甲基）碳酸酯（BTC）代替光气，“一锅法”合成了8种取代脲类除草剂，产物结构经元素分析、IR确证。

Imaging experimental results indicate that these trichloromethyl substituted triazines can be applied to lithographic compositions for chemically amplified CTP plate and PS plate.

成像实验表明，所制备的三氯甲基取代的三嗪类化合物可用于化学增幅型热敏CTP版和PS版的成像组成物中。