Also covered are forced air heating, heat pumps, automatic control thermostats, flues and sound and vibration.

此外盖住是被被迫的空气加热，热帮浦，自动控制恒温器，烟道和声音和振动。

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Also covered are forced air heating, heat pumps, automatic control thermostats, flues and sound and vibration.

此外盖住是被被迫的空气加热，热帮浦，自动控制恒温器，烟道和声音和振动。

youdao