friction machine造句

• Standard practice for calibration of the james static coefficient of friction machine
  摩擦机的james静态系数校正的标准操作规程
• Before friction machine parts inspection , the friction coefficient whether the specimen design requirements , floating steel brush to remove rust , oil , paint cleanse
  配件前检查摩擦机，试件的摩擦系数是否达到设计要求，浮锈用钢丝刷除掉，油污、油漆清除干净。