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外行请教: 暖气炉(gas furnance)的火种夏天不用时关掉(turn off). 再点燃时是否要请专业人士来点火. 开关上有on-pilot-off 三挡. 其中pilot 是做何用?
downtown1
(UofT)
(#100461@0)
Last Updated: 2001-6-13
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外行请教: 暖气炉(gas furnance)的火种夏天不用时关掉(turn off). 再点燃时是否要请专业人士来点火. 开关上有on-pilot-off 三挡. 其中pilot 是做何用?
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