spacing ratio 井距比 ; 间距比 ; 空间比 ; 间隔比
spacing height ratio of luminaire 灯具距高比 ; 灯具距离比
chord-spacing ratio 叶栅稠密度
chord spacing ratio 叶栅弦节距比
filament spacing ratio 纤维占空比
Water-flow velocity of continuous measurement was determined by the ratio of count rate value of different source spacing detectors.
连续测量的水流速度是通过不同源距探测器计数率的比值来确定。
The surface area of aggregate per unit volume of mortar does have influence on the mean value of the nearest surface spacing, but the ratio between them is not constant.
单位砂浆体积下集料的表面积的变化对邻近集料表面最近间距的平均值有影响，但二者之间的比值并非常数。
The optimum parameters include the optimum frequency spacing, average damping ratio, and tuning frequency ratio.
最优参数包括最优频率间隔、最优平均阻尼比和最优调谐频率比。
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