充分采动时，地表最大下沉值Wcm与煤层法线采厚M在铅垂方向投影长度的比值称下沉系数。又称下沉活化系数。 q=Wcm/(M·cosα)
结果表明：在采深和采出率等条件相同的情况下，地表下沉值和水平移动值均随采厚的增加而增大，而下沉系数随采厚的增加以非线性关系逐渐减少。
And the results show that with the increase of mining height, the surface subsidence and horizontal movement value increase, while the subsidence factor decreases in nonlinear.
阻力系数和雷诺·尔德数与悬浮颗粒的下沉速度紧密联系在一起。
The drag coefficient and the Reynolds number are tightly related with the settling velocity of suspensions.
成果表明：船队进出厢的航行阻力和下沉量取决于船厢断面系数和进出厢的速度。
It is shown that the ship sailing resistance and ship sinkage are dependent on cross-section coefficient of the chamber and sailing speed.
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