虹吸的

The existing problem in operation of siphonal sand filter and innovation were introduced.

介绍了虹吸式砂滤器在运行过程中出现的问造措施。

Develops the thermosiphon heat recovery equipment based on the operating principle of the thermosiphon.

在研究热虹吸管工作机理的基础上,开设计出热虹吸管能量回收装置。