当移液器吸头中含有液体时，可以将移液器水平放置。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30411' and id < 2458443 and id<>'2458443' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30411' and id > 2458443 and id<>'2458443' order by id asc limit 5