• 1. roughness factor: 粗糙因素 | 粗糙度系数 | 相对粗糙度 | 粗糙因子
• 2. relative roughness factor: 相对粗糙度
• 3. Manning roughness factor: 曼宁糙率系数

更多释义

• 1.It is revealed that the roughness factor, slope of the canal bed, cross section of the canal and sediment sizes are the important factors which influence the sediment transport capacity of the canal.
  渠道的糙率、比降、断面形状、来沙组成和引水流量是影响引黄渠道挟沙能力的主要因素；
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• 2.By the testing we found the flexible artificial roughness rubber turns which simulated the wasted tires were the main factor which affect the roughness of the bottom which directed to vertical flow.
  通过试验发现就环状橡胶圈（模拟废旧轮胎）这种柔性加糙体，垂直水流方向的投影面积是影响槽底糙率、水深和流速的主要因素。
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• 3.The paper introduce the leakage influences factor of reciprocating rod seals; the roughness of the seal surface and the rod speed are the important parameter of seal leakage.
  介绍了液压往复杆式密封是否发生泄漏的影响因素，指出密封表面粗糙度和杆速是决定密封是否泄漏的重要因素。
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