英语语法分析

The production process includes the following steps: adding dibenzyl amine and sodium hydroxide successively to reactor holding pure water while stirring;

生产工艺过程：向盛有纯化水的反应釜内，搅拌状态下依 次加入规定量的二苄胺、氢氧化钠；

On the basis of the complex reaction of dibenzyl sulfide with palladium, a high selective method of solid phase extraction for the adsorption of palladium was developed.

基于二苄基硫醚与钯的配合反应，建立了一种高选择性固相萃取吸附钯的方法。

Effects of solvent, sodium sulfide dosage, reaction time and reaction temperature in syn thesis of dibenzyl sulfide from benzyl chloride with sodium sulfide without catalyst were studied.

研究了无催化剂存在时，溶剂、硫化钠用量、反应时间和反应温度对从氯化苄和硫化钠合成二苄基硫醚的影响。