Modeled after the original Type A pinch valve, the valve is a rugged, long-lasting, air-operated pinch valve with a built-in actuator.

以A型夹管阀为基础改进而来，这种锚链管道阀门坚固耐用，使用寿命长，并配置内置气动执行器的气动夹管阀。

youdao

Air Operated - Uses auxiliary compressed air or water source to shift valve, rather than a solenoid operator.

气动—使用辅助压缩空气或水的来源转变阀，而不是一个螺线管操作。

youdao

Air operated units should be tested for speed and function.

气动单元要进行速度和功能测试。

youdao

Take the chaos that has engulfed Brazil's airports for the past six months, the result of a creaking air-traffic control system operated by disgruntled air-force staff.

ECONOMIST: Brazil: Lula opts for a quiet life | The

In addition to the 168 towers to be closed April 1, some 16 towers that are operated on a cost-sharing basis with other governments, and five operated with the Air National Guard, will be closed Sept. 30.

CNN: FAA begins process to close 168 towers on April 1

In 1997, a plane operated by wholly-owned subsidiary Silk Air crashed in Indonesia, killing everyone aboard.

CNN: After the Crash