例句 /

Crane globe valves are highly efficient for services requiring frequent operation and throttling when pressure drop across the valve is about 20% of inlet pressure.

Crane globe valves are highly efficient for services requiring frequent operation and throttling when pressure drop across the valve is about 20% of inlet pressure.

当通过阀门的压降为管路压力的20%左右时,美国克雷恩截止阀就能够高效应用在频繁操作和节流的应用场合。