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。
A portable electronic system configured for a secure transaction includes a card having a width, length, and thickness, wherein a ratio of length to thickness is at least 5.
一种为安全交易配置的便携式电子系统包括具有宽度、长度和厚度的卡，其中长度与厚度的比至少为5。
These parameters include the variety of width-length ratio of the wall, bracing rigidity, thickness of the wall and ratio of beam rigidity.
分析了支撑刚度、墙体高宽比、墙厚及梁柱线刚度比等参数的影响。
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