Make sure that the discharge of combustion products can take place freely (chimney lock-gates should be open) and that there is water in the boiler.

确认燃烧物能自由排放(烟囱阀门要打开)并且锅炉中有水。

youdao

Make sure that the discharge of combustion products can take place freely (chimney lock-gates should be open) and that there is water in the boiler.

确认燃烧物能自由排放(烟囱阀门要打开)并且锅炉中有水。

youdao