水箱底部连接有回水管,回水管上装有回水阀并且和蒸汽管连通。
The bottom of the water tank is connected with a water return pipe which is provided with a water return valve and is communicated with the steam pipe.
水箱底部连接有回水管,回水管上装有回水阀并且和蒸汽管连通。
The bottom of the water tank is connected with a water return pipe which is provided with a water return valve and is communicated with the steam pipe.
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