It is resolved that design condition efficiency for low specific speed centrifugal pump is not the highest in terms of experiential statistical area ration value.
解决泵行业一直依据经验统计值确定面积比而不能使低比转速离心泵在设计点效率最高这一问题。
The application of value engineering to logistics area performs an impressive role in solving the problems of low efficiency and high cost in logistics sector.
价值工程在物流领域中的应用对于解决物流行业存在的成本高、效率低的问题具有重要意义。
The low value range of Y-ray spectrometry covers 75% of the area of known oil field.
能谱测量的低值区范围与已知油田在本区的面积重合率达75%。
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