New Japanese cars averaged 13 km to the litre in 1981.1981年，新型的日产汽车平均每升汽油能跑13千米。Our speed averaged out at 50 km an hour.我们的平均速度是每小时50公里.For those uninitiated in scientific ocean drilling, the previous record was a little...
雅典人对待生活非常怡然自得。Athenians have a very easy-going attitude to life.所有的雅典人都发誓效忠于他.All Athens swore to carry out his demands.雅典人及其同盟军的船只袖手旁观.The ships of the Athenians and their allies sulked unhelpfully....
杂乱脉冲干扰由电子噪声导致的在示波器显示中振幅的小变化.Small variations in amplitude of an oscilloscope display caused by electrical noise.他是否已注意到在他身上的一点小变化?Has he detected even a small change in himself?灵敏度(SENSITIVITY)-仪器所能检测得到的信号中的最小变化量.SENSITI...