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。

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Heavy duty compressors and pelleters in process services shall be installed in the building with a mobile crane or monorail traveling the full length of the house.

工艺（环境）中的重型压缩机及造料机应安装在室内，室内应装有移动式吊车或单轨吊车（行程为房间的全长）。

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Maintenance Services cover all activities necessary for trouble-free crane operation.

维修服务包括提供所有为保证起重机安全可靠的一切必要措施。

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But Nest's key partner David Crane says it "remains to be seen" whether the ultimate connection will be between digital services like Nest or utilities like his.

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