rated voltage和nominal voltage有什么区别?我确定肯定是有区别的,请知道的人赐教!

请问operating和 operational 有什么区别.比如 Rated operating voltage Rated operational current rated voltage和nominal voltage有什么区别?我确定肯定是有区别的,请知道的人赐教! Rated voltage 3v.Dc 是什么意思 Rated Power Frequency Withstand Voltage是什么意思 英语翻译上面铭牌同时有：rated line voltage 345kVqualification voltage 46kV 格力空调窗机铭牌上的cooling power input和cooling rated input 以下是铭牌参数：WINDOW TYPE AIR CONDITIONERmodel GJCM18A4TK1KArated voltage 220-240V~rated frequency 50Hzclimate type T3comp.LRA 52Acooling capacity 4500Wcooling power Rated voltage:AC 110V/120V/220V/230V/240V version optional. 英语翻译电力变压器类的一些技术要求!看看!Rated Power -----------------------------High Voltage (HV)TAPS ATLow Voltage (no load) (LV1)Rated FrequencyInsulating Class (HV / LV)BIL (HV / LV)Power Frequency Voltage Withstand (HV / LV)Ma voltage voltage sags,和voltage drops怎么翻译才贴切啊 under voltage和low voltage有区别吗? clamping voltage 和 reverse standoff voltage 的区别 clamping voltage 和 reverse standoff voltage 的区别 UL报告中的这句话啥意思“apparatus voltage rated between”我公司产品UL报告中大高压一项测试中有这个表格, power supply 和voltage 有什么不同 谁能用英文解释一下“over”和“rated”谢谢 英语翻译Charge device with 300% of rated voltage for Dielectric Strength No breakdown or visual defects 1-5 seconds,w/charge and discharge current limited to 50 mA (max) Note:Charge device with 150% of rated voltage for 500V devices. 二极管英文参数反译MAXIMUM RMS Voltage 和 Maximum DC blocking voltage