Membrane separation method is a new separation technique for mixed fluid materials.
膜分离法是一种新型混合流体分离技术。
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。
Material and sort, making method and separation devices of the membrane are described.
论述了膜的材料与分类，膜的制备方法及膜分离装置。
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