配电装置母线截面积是按（  ）选择的。 

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69484' and id < 4500567 and id<>'4500567' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69484' and id > 4500567 and id<>'4500567' order by id asc limit 5