硬铝母线短路时，发热允许温度是(    )℃。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69521' and id < 4503997 and id<>'4503997' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69521' and id > 4503997 and id<>'4503997' order by id asc limit 5