A new algorithm is proposed for calculating the maximum flow length ratio of plastic product.
提出了计算塑料制件最大流长比(流动长度与厚度的比值)的算法。
Three kinds of length ratio of evaporator to condenser of heat pipe heat exchangers are proposed: the flow length ratio, the saving length ratio, and the allowable safety length ratio.
本文提出了热管换热器加热段和冷却段的三种长度比：流通长度比、经济长度比和许用安全长度比。
Quantitative relations of the pump flow rate versus the ratio of diffuser length to width, the ratio of diffuser thickness to width, fluid viscosity and backpressure were also given.
还给出微泵流量与扩散管长宽比、厚宽比、液体粘度和进出口反压差的定量关系。
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