Operation system includes steering hardware and clutch operating device. The former controls the direction.

操作机构包括转向机构和离合器操纵机构，转向机构控制松土机转向；

youdao

This paper analyzes the impact phenomenon and its calculation method in operating device of HV circuit breaker, and shows the optimal mass ratio in the different situation.

分析了高压断路器操动机构在工作过程中运动件的碰撞现象和计算方法，并分析了在不同要求下两碰撞件最佳碰撞质量比。

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The Extension consists of a length of steel tube with a coupling on one end to attach to the valve, and a coupling on the other end to attach to a handwheel or some other type of operating device.

阀杆加长件由带连接在阀门上的联轴节的钢管长度，连接在手轮上的联轴节，或其它类型的操作机构组成。

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She remembers that the man operating the device at first refused to accept her material.

VOA: special.2010.02.09

Samsung has combined a full-color Palm operating system device with a code division multiple access (CDMA) phone.

FORBES: Ten O'Clock Tech: More PDA Phones

Apple iOS and Android operating system device are doing well because these products shifted the mobile user experience.

FORBES: Is Mobile Dead or Entering a New BattleGround?

When a company of 50, 000 employees has several thousand applications, trying to create versions of all of those apps for each computer and mobile device operating system is an enormous unfunded mandate.

FORBES: Beyond BYOD: A Strategy for Comprehensive Mobile Productivity