A.自動電平調節(jié)要盡量快 B.自動電平調節(jié)要盡量慢 C.由遠動裝置自行糾正或拒收來解決
A.<0.4% B.<1.0% C.>1%~1.5%
A.-5%~10% B.-10%~15% C.-15%~25%