This paper describes the principle of microprocessor ultrasonic range finder.主要介绍微电脑超声测距仪的工作原理.A Control System of VVVF Elevator with Single Chip Microprocessor and PLC.PWM逆变器 型交流电梯紧急自动疏散系统.I’ve got a typerwriter with a ...
我们认捐了十块钱的慈善资金.Our subscription to the charity fund is ten dollars.他认捐5 镑 作为水灾救济基金.He subscribed & 5 to the flood relief fund.史密斯先生封慈善事业慷慨认捐.Mr. Smith subscribes liberally to charities....
Weir broke his leg in a freak accident playing golf.韦尔因为一次打高尔夫时发生的离奇事故折断了腿。A freak wave had buckled the deck.突然掀起的巨浪打弯了甲板。By some freak of fate, she won an enormous sum of money.她不知交了什么好运, 赢了一大笔钱....
目前，30%的爬行动物、鸟类和鱼类面临灭绝的危险。30 percent of reptiles, birds, and fish are currently threatened with extinction.这将导致马鹿的灭绝。It's going to be the death knell of the red deer.这次原油泄漏可能会使波斯湾的海龟灭绝。The spill could wipe out the Gu...