如果冲量为零, 则动量不变.If the impulse is zero, there is no change in momentum.正周相动力冲量的定义可以用类似的式子表示.The positive phase dynamic impulse can be defined by a similar expression.用于碰撞过程的动量定理——冲量定理.The momentum theorem applied to an imp...
Both Sue and Jude together went to the office of the district to give notice.淑和裘德两个一块儿到本地登记局去申请结婚.Do I have to give notice if I want to move?如果我想搬出去需要提前通知你 吗 ?How do I give notice that my child will leave a class?假如我的孩子将...
Doran was clutching the bottle with both hands and sucking intently.多兰双手紧紧抓着瓶子尽情地喝着。The baby was sucking away at the empty feeding - bottle.那个孩子正在吮吸着空奶瓶.The old man is sucking at a cigar.老人在抽烟斗....
Bypasses are available on all valves.在所有阀门上,都可以采用旁通.Building more motorways and bypasses will help the environment by reducing pollution and traffic jams in towns and cities...建造更多的高速公路和绕城道路能够减少城镇中的污染和交通堵塞，有利于改善环境。This f...
Freddy speaks very quietly and pads around in soft velvet slippers.弗蕾迪说话轻声细气，穿着柔软的天鹅绒拖鞋蹑手蹑脚地四处走动。Hello Freddy, it's only me, Maxine.你好，弗蕾迪！是我，玛克辛。I'll marry Freddy , I will , as soon as I'm able to support...