The oven has an automatic timer and other refinements.这个烤箱有自动定时器及其他改进装置.The heater is on a timer switch.加热器连在一个定时开关上。He flipped the timer switch.他按了一下定时开关。The timer must have been actuated by radio control.这个定时器肯定是无线电操纵开...
Any minute now, that phone is going to ring.那部电话随时可能响。Now that she was retired she lived with her sister.现在她已经退休了，和姐姐一起住。There is no doubt now that her marriage is beyond repair.毫无疑问她的婚姻无法挽救。...
电流滞后于电压.The current lags behind the voltage.如果输入的电压是+3伏, 那么输出的电压便是-6伏.If the input voltage is plus three , it comes out as minus six.我们用以表示电压和电流的单位分别为伏特和安培。The units in which we show voltage and current are volt and ampe...