如果你闻到煤气味,关闭总阀门。
如果你闻到煤气味,关闭总阀门。
于是乎,在物业把总阀门关掉之前,姥姥家发大水了。
Thus, before the property management of residence turned off the valve, my grandmother's house was flooded.
这样赶快换好阀门就能开总阀了。
注意:吹灰器维护检修时,一定要先切断电源,检修阀门时应关闭管路总阀。
Caution: Before maintenance, shut off the power and close the main valve.
注意:吹灰器维护检修时,一定要先切断电源,检修阀门时应关闭管路总阀。
Caution: Before maintenance, shut off the power and close the main valve.
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