A.亮起 B.熄滅 C.短間隔閃爍 D.長(zhǎng)間隔閃爍
A.EGS閉合 B.VCB合 C.MCR斷開(kāi) D.Batk2未投入
A.AC1200V,50Hz B.DC1300V,50Hz C.DC1400V,50Hz D.AC1500V,50Hz