friction efficient

• 摩擦系数

friction efficient的用法和样例：

例句

1. The larger the coefficient of friction is, the larger TAZ becomes.
   摩擦系数越大，热影响区越大。
2. Round pit pattern increase friction resistance,pjrevent from slipping of goods.
   圆坑花纹摩擦系数大，运行中增加阻力，防止物料下滑。