mass median diameter 质量中位直径 ; 质量中值直径
volume median diameter 体积中数直径 ; [科技] 体积中值直径
phi median diameter 斐中数直径
raindrop median diameter [土壤] 雨滴中数直径
Count Median Diameter 真菌粒子中数直径 ; 计算的中位数直径
ma median diameter 质量中位直径
particle median diameter 胶粒平均直径
rainfall median diameter 雨滴中数直径
The K-Factor correlated linearly with dust concentration, this is due to the variation of dust particle median diameter.
这种影响是由于粉尘颗粒中位径变化而引起的。发尘源非连续发尘时不但引起粉尘浓度变化，而且引起中位径改变。
This article mainly introduces the method that adopts gear caliper to measure the median diameter normal tooth thickness of double-line trapezoidal thread.
本文主要介绍了采用齿轮卡尺测量双线梯形螺纹中径法向齿厚的方法，同时也测量出螺距产生的误差。
When the purity of potassium sulfate crystal is lower and the content of the potassium phosphogypsum is higher, the median diameter of crystal particle and the density of suspension are higher.
结果表明：当硫酸钾结晶产品纯度较低、钾石膏含量较高时，晶体平均粒径及悬浮密度均较大；
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