短語(yǔ)詞組短語(yǔ)rolling ? friction 滾動(dòng)摩擦rolling g friction 滾動(dòng)摩擦rolling g friction torque 滾動(dòng)摩擦力矩rolling E friction 滾動(dòng)摩擦rolling friction force 滾動(dòng)摩擦力rolling friction pairs 滾動(dòng)摩擦副kinetic c rolling friction 運(yùn)動(dòng)滾動(dòng)摩擦rolling friction wear 滾動(dòng)摩擦磨損angle of rolling friction 滾動(dòng)摩擦角 返回 rolling friction