固体介质因受潮发热而产生的击穿过程属于（  ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69492' and id < 4501700 and id<>'4501700' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69492' and id > 4501700 and id<>'4501700' order by id asc limit 5