中流

This paper introduced a measuring chamberlet method and character for flow-noise in seawater pipe system and analyzed inferior-limited frequency of reverberation of measuring chamberlet.

摘要介绍了海水管路系统中噪小测量方法及其特点，分析了测量小场特性及产生混响下限频率。

The pulse pump is a new-type pump, in which the fluid successively flows out in one direction by means of the pulse effect in the uniflow pipe.

泵中态单一,能量转换效率高,单级扬程范。泵出连续、量大而无气蚀危险。