变压器油中含有空气水分和纤维杂质,这些杂质的介电系数与变压器油的不同,在电场作用下,引起电场分布发生畸变,局部场强降低。( )
发布时间:2026-01-24
A.正确
B.错误
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69491' and id < 4501695 and id<>'4501695' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69491' and id > 4501695 and id<>'4501695' order by id asc limit 5
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