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1)  decompressing evaporation crystallization method
减压蒸发结晶法
1.
There are 9 methods,in which the rotary cylinder with internal heating method,decompressing evaporation crystallization method and electrolyze method are more advanced.
关于铬酐制法的评论 ,各国正在生产的铬酐制法有 9种 ,以内热式转筒法、减压蒸发结晶法和电解法更先进。
2)  evaporation crystal technology
蒸发结晶法
3)  vacuum evaporation
减压蒸发
1.
Normal evaporation,vacuum evaporation and gas-carrying evaporation were adopted for treatment of old landfill leachate with different pH values.
采用常规蒸发、减压蒸发和载气蒸发处理不同pH值的“老龄期”渗滤液。
4)  Evaporating crystallization
蒸发结晶
5)  evaporation and crystallization
蒸发结晶
1.
The evaporation and crystallization is the key procedure in the preparation of caustic soda, aiming at the removal of NaCl and increasing the concentration of NaOH solution.
隔膜电解法是我国主要烧碱制备方法之一,蒸发结晶系统是以去除电解液中氯化钠等杂质和提高烧碱浓度为主要目的的制烧碱关键工序。
6)  evaporation-crystallization
蒸发-结晶
1.
Mechanisms controlling water chemistry of lake and river water from Nam Lake are illustrated,it is indicated that lake water is mainly controlled by evaporation-crystallization effect,while river water is mainly influenced by rock weathering function.
从水化学的控制影响因素来看,纳木错湖水主要受蒸发-结晶作用控制,而河水则主要受岩石风化作用影响,其中碳酸盐和硅酸盐的风化影响最为重要,其次是部分蒸发岩的溶解,而区域内湖水蒸发与大气海盐传输也有一定的贡献。
补充资料:减压蒸发
分子式:
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性质:系使蒸发器内形成一定的真空度,将溶液的沸点降低,为达到浓缩药物或除去挥发性溶媒的目的而进行的沸腾蒸发操作方法。由于溶液沸点降低,能防止或减少热敏物质的分解,也可增大传热温度差,强化蒸发操作。同时,对加热热源的要求也降低了。减压蒸发在药剂生产中应用广泛,减压蒸馏器也适用于减压蒸发。

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