力法基本方程的物理意义是（    ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='7343' and id < 574727 and id<>'574727' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='7343' and id > 574727 and id<>'574727' order by id asc limit 5