齿轮传动机构的安装要有准确的安装中心距和适当（ 0

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24893' and id < 2124472 and id<>'2124472' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24893' and id > 2124472 and id<>'2124472' order by id asc limit 5