乙炔钢瓶压力不足时，可以通过敲击或振动提髙气瓶内压力。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30403' and id < 2457877 and id<>'2457877' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30403' and id > 2457877 and id<>'2457877' order by id asc limit 5