Loss Gradient of Friction 摩阻损失坡降
Loss Coefficient of Friction 摩阻损失系数
friction loss of head 沿程水头损失
calculation of friction loss 沿程阻力计算
friction loss of well bore 井筒摩阻
friction loss of water head 摩擦损失水头
The optimum passage section figure of rectangle is square, and the rectangle has 4 optimum comer circular arcs which make the hydraulic loss of friction loss of per unit length passage the least.
矩形流道断面以正方形为最优，且存在最优角圆，使单位长流道沿程水力损失最小。
The slightest motion of a patient in bed creates friction between skin and sheets and results in loss of cells from the skin's outermost layer.
卧床病人最轻微的活动就会在皮肤和床单之间产生摩擦力，结果就会引起皮肤最外层脱落。
With graphite particle content increasing from 5% to 20%, wear weight-loss and friction coefficient of the composites are obviously declined, greatly improving wear resistance of the composites.
随着石墨颗粒含量从5%增加到20%，镁合金基复合材料的耐磨性得到明显的改善，磨损质量损失与摩擦系数都降低到较低水平。
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