一条四分裂导线,分裂导线半径为13.6mm,分裂间距为400mm,则每相导线的等效半径为( )
发布时间:2026-01-22
A.413.6mm
B.171.8mm
C.187.3mm
D.400mm
试卷相关题目
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69456' and id < 4498157 and id<>'4498157' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69456' and id > 4498157 and id<>'4498157' order by id asc limit 5
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