The purification methods of phosphine include adsorption method, low temperature distillation method and membrane separation method etc.
总结了磷化氢的精制方法，主要有吸附法、低温精馏法和膜分离法等。
The method of production of high purity hydrogen by low temperature adsorption is ripe in China.
采用低温吸附法生产高纯氢，在国内已是很成熟的方法。
Methods for dehydration of natural gas includes the low temperature separation method, solvent adsorption method, and solid desiccant adsorption method.
天然气脱水方法有低温分离法、溶剂吸收法、固体干燥剂吸附法。
Methods for dehydration of natural gas includes the low temperature separation method, solvent adsorption method, and solid desiccant adsorption method.
天然气脱水方法有低温分离法、溶剂吸收法、固体干燥剂吸附法。
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