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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；

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。

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。

4·Roughness of rock joints is a major factor affecting mechanical properties of rock joints.

节理的粗糙性是影响节理力学性质的重要因素。

5·Orthogonal experiment shows that the time is the main factor of removal rate and abrasive granularity is the crucial factor of surface roughness.

通过正交试验证明加工时间是影响去除量的主要因素，而磨料粒度对表面粗糙度影响较大。

6·A very important factor of evaluation of product quality is the surface roughness.

评价产品质量很重要的因素是表面粗糙度。

7·The friction factor obtained from the experiments increases with the surface roughness increase when the relative roughness is greater 1%.

实验结果表明当壁面粗糙度超过1%时摩擦系数随着壁面相对粗糙度的增加而增加。

8·According to the research on wheel structure, the random distribution of grains of wheel is an important factor producing better roughness on ground surface.

在研究砂轮结构的基础上得出砂轮磨粒分布的随机性是磨削加工能产生表面低粗糙度值的重要因素。

9·Rutting is one of the major deterioration forms of high level asphalt pavement for channel traffic and the significant factor to affect the roughness, performance, driving safety and comfort.

车辙是渠化交通高等级公路沥青路面的主要损坏形式之一，是影响路面平整度、路面使用性能、行车安全性和舒适性的重要因素。

10·Besides, the impact factor is influenced significantly by required time during braking and the roughness of pavement surface.

路面的不平状况加剧了车辆制动作用时对桥梁冲击系数的影响。