The design principle, structure characters, testing principle and method, and technique capability of hydraulic photoelectrical pressure gauge are presented.
介绍了液压型光电式测压计的设计原则、结构特征、测试原理、试验方法及其技术性能。
The process principle and mass transfer mechanism of membrane separation are studied. The technique present situation, operation characters, application and development are reviewed.
简要论述了液膜分离技术的过程原理、 传质机理，介绍了该技术的研究现状。操作特点及其应用与发展前景。
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