Check the electric switch after everything is ok, then put out the lamp, went to bed.

检查电器开关都一切正常后，便熄灯，上床睡觉了。

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The electric heating bed is made of metal pipes (such as iron pipes).

用金属管做的（如铁管）叫做电热床或炕（地炕）。

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The electric heating bed is made of metal pipes (such as iron pipes).

用金属管做的（如铁管）叫做电热床或炕（地炕）。

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