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...
用带子把滑水板绑在船顶后，我们就在多佛登上了气垫船。Strapping the skis on the roof, we boarded the hovercraft in Dover.彼得主动提出教他们滑水。Peter offered to teach them water-skiing.他主动提出教他们滑水。He offered to teach them water-skiing....
氚是最和缓的放射性同位素之一.Tritium is one of the mildest radioactive isotopes.更为活跃的是氢的较重同位素, 氘和氚.More reactive are the heavier isotopes of hydrogen, deuterium and tritium.氚肺扫描可能有助于早期诊断吸入性损伤.Xenon lung scans may be helpful in the ear...
Valerie earned letters in three sports: volleyball, basketball, and field hockey.瓦莱丽在排球、篮球和曲棍球三个项目上获得了佩戴校名首字母标志的荣誉。Neither volleyball nor basketball is a hundred years old.排球和篮球都不到一百年的历史.In playing volleyball you have th...
The offender apologized when he sobered up.冒犯者醒酒后道了歉.He suddenly sobered.他突然严肃起来。The bad news sobered us a while.坏消息使我们冷静了一会儿。The news sobered all of them.那消息使他们全都冷静下来.Later she sobered down and married somebody else.后来她...
我得把这块肥肉熬成油, 我们正缺猪油.I must render down this fat; we are short of lard.这猪油在大锅熬炼.The lard was tried in a big kettle.把水、黄油和猪油倒入平底锅，然后慢火煮沸。Put water, butter and lard into a saucepan and bring slowly to the boil....