A.最大 B.正常 C.運(yùn)行 D.有效
A.1.5~2 B.2~3.5 C.2~4 D.3~5
A.16W/m2 B.22W/m2 C.28W/m2 D.34.7W/m2
A.75% B.65% C.60% D.55%
A.最大值 B.最小值 C.沖擊值 D.有效值
A.燈具允許電流,燈端允許電壓值 B.負(fù)荷計(jì)算電流,燈具額定電壓 C.燈具允許電流,燈具額定電壓 D.負(fù)荷計(jì)算電流,燈端允許電壓值
A.33.5kvar B.45kvar C.350kvar D.450kvar
A.0.80 B.0.85 C.0.9 D.0.95
A.900mm B.1000mm C.1650mm D.1750mm
A.85% B.70% C.50% D.25%