Abnormity is never happened about the hopper and s valve of our concrete pump.
中联投放市场的拖泵,其料斗及s阀从未出现异常。
Turn off the gas, using the outside main valve if you can, and call the gas company from a neighbor \ 's home.
如果可能的话,从外面的主阀门关掉煤气。从邻居家给天然气公司打电话让他们处理。
Leave the gas on at the main valve, unless you smell gas or think it \ 's leaking.
除非闻到煤气味或认为煤气正在泄漏,不用关掉煤气阀门。
There's a valve between them.
和一个连接它们的阀门。
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