左心室/胫骨长度比值 left ventricular weight to tibial length ratio
多波长吸收度比值差法 absorbance ratio difference spectrophotometry
导出了计算其空换位长度及相应环流损耗比值的解析式，供设计大型交流电机定子线棒时参考。
Thus the analytical expressions for calculating the length of voids and its circulating current loss ratio have been deduced.
为避免桥梁共振，设计时应满足第一阶竖向自振频率大于车辆最大速度与车辆长度的比值。
To avoid the most dangerous resonance, the first vertical frequency of the bridge should be greater than the ratio of the maximum vehicle speed to the vehicle length in design.
钢板边部形状的改变不仅与MAS轧制的补偿面积有关，而且与MAS轧制段长度和压下量的比值有关，若MAS轧制参数选取不当，钢板边部会发生“过补偿”现象。
The numerical simulation results showed that rolling with MAS can improve the plate side shape not only due to the compensation area, but also to the ratio of the length and reduction of rolling.
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