The recommended location (as shown) is to connect the water regulator to the hydrant, and then run the hose to the trailer rig.

建议的安装位置(如图所示)是将水调节阀连接到消防栓上，然后再通过软管连接到拖车上。

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When work is to be interrupted for any length of time, the valve should be closed and all gas released from the hose and regulator to a safe location.

当工作被打断任何长时间时，必须关闭阀门，把软管和调整器内的所有气体排放到安全的地方。

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But those who sip from Twitter's fire hose can get much more information, including a sender's location, the biography on his profile page and how many people have subscribed to his messages (see blog post on the map of a tweet).

ECONOMIST: Making sense of a torrent of tweets