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 theoretical calculation value of some common transition fit is compared with practical statistical value, which is of practically reference to the accuracy selection in mechanical design.
并对几种常用过渡配合的理论计算值及实际统计值作比较，这对于机械设计中的精度选择有实际参考意义。
The application of fuzzy statistical analysis for selecting value range of runoff design is described, taking the annual design runoff calculation for example.
以设计年径流值的分析计算为例，阐述了模糊统计分析方法在确定设计径流值中的应用。
应用推荐