低电压闭锁元件按躲过正常最低运行电压整定,一般可整定为母线额定运行电压的( )倍。
发布时间:2026-01-24
A.0.2~0.3
B.0.3~0.4
C.0.4~0.5
D.0.6~0.7
试卷相关题目
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69479' and id < 4501059 and id<>'4501059' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69479' and id > 4501059 and id<>'4501059' order by id asc limit 5
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