I haven't come all this way to bottle out.我一路走来不是为了在最后关头打退堂鼓。The police haven't really done anything for the black community in particular.警方并未真正特意为黑人群体做什么.You haven't lived until you've used their ne...
He and his father, according to local gossip, haven't been in touch for years.当地风传，他和父亲已多年未联系了。They haven't got an invite to the wedding.他们还没收到参加婚礼的请柬。The library is a haven of peace and quiet.图书馆是个平和而安静的去处。"Yo...
在作功冲程期间,气门的位置都是关闭的.The position of the valves during the power stroke are both closed.动力冲程的后段是绝热膨胀过程.The remainder of the power stroke is an adiabatic expansion.当排气冲程开始时, 气缸被向上运动着的活塞刮掠.When the exhaust stroke starts, the...
The Frequency Shift Keying modulation is widely used in HF digital communication.移频键控是短波数字通信中常用的一种调制方式.Her sister carried with her most of the grimness of shift and toil.她姐姐身上还带着艰辛操劳的痕迹.Before deselecting shift the selec...