A.0.01 B.0.05 C.0.03 D.0.005
A.25~50 B.10~20 C.20~40 D.40~60
A.累計(jì)圓盤轉(zhuǎn)數(shù) B.測(cè)量功率 C.標(biāo)示電能表技術(shù)參數(shù) D.測(cè)量時(shí)間