3×10(40A)的三相电表 最大可承受多少千瓦，单项可承受多少千瓦？ 1、3×10(40A)的三相电表属三相直入式电能表，其最大电流可以到40A；2、如果用户的功率因数以0.8计算，则该表能够承受的功率为：P=√3×U×I×cosφ=1.732×0.38×40×0.8=21（kW）3、单相能够承受的是总表的三分之一，即7kW.
英语歇后语 1.爱屋及乌 Love me，love my dog.2.百闻不如一见 Seeing is believing.3.比上不足比下有余 worse off than some，better off than many；to fall short of the best，but be better than the worst.4.笨鸟先飞 A slow sparrow should make an early start.5.不眠之夜 white night6.不以物喜不以己悲 not pleased by external gains，not saddened by personnal losses7.不遗余力 spare no effort；go all out；do one's best8.不打不成交 No discord，no concord.9.拆东墙补西墙 rob Peter to pay Paul10.辞旧迎新 bid farewell to the old and usher in the new；ring out the old year and ring in the new11.大事化小小事化了 try first to make their mistake sound less serious and then to reduce it to nothing at all12.大开眼界 open one's eyes；broaden one's horizon；be an eye-opener13.国泰民安 The country flourishes and people live in peace14.过犹不及 going too far is as bad as not going far enough；beyond is as wrong as falling short；too much is as bad as too little15.功夫不负有心人 Everything comes to him who waits.16.好了伤疤忘。
满字的右半部与一个页字加起来念什么？一个”干“和“页”字一起呢？这俩字组成的词又是什么意思？
