Li Caihui Solving method for development of back guide vane of the fan is introduced.
介绍了通风机后导叶展开的计算方法。
The result obtained brings down the big loss resulting from an excess of noise along with emergency repares back to the factory. This also enables the vane pump to find a good market.
此项研究成果使该泵减少了因噪声超标而造成大量返修所引起的巨额损失，从而在市场上重新站稳了脚跟。
The double attraction centrifugal pump consists of rotation shaft, pump body, pump cover, and double attraction vane wheel comprising two back-to-back installed vane wheels.
它包括转轴、泵体、泵盖，两个叶轮背靠背地安装在一起，构成双吸叶轮；
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