total reflux造句怎麼寫
- 造句
- 關注:1.8W次
2、The chlorination of pivaloyl chloride to prepared 3-chloropivaloyl chloride was took place in a packed distillation column with total reflux.
1、The result indicated that the state switch of total reflux and total withdraw by controlling double-temperature in dynamic accumulation process was completely feasible.
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