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249033233:检查发热管或感温探头是否坏了!还有继电器! (2015-11-09 14:58)
???你知:请问这些该怎么测, (2015-11-09 15:16)
249033233:用万用表测!是否有供电,是否开路! (2015-11-09 15:53)
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