P点和Q点分别表示该质点的两个位置.Points P and Q represent two positions of the particle.碰撞并不往往使质点减速.Collisions need not always act to slow particles down.我们可标记占据某个小领域的质点群.We label a group of particles occupying a small neighbourhood....
Tom admits that playing video games sometimes distracts him from his homework.汤姆承认玩电子游戏有时会使他无心做作业。I'm bored with bridge, but golf still distracts me.我已经玩厌了桥牌, 但是还喜欢玩高尔夫球.That kind of thing distracts us and keeps us ...
作为喜剧界的常青树——他的简单淳朴与自然大方无人能及。A timeless comic actor—his simplicity and his apparent ease are matchless.有的树是常青的, 被叫做常青树.Some trees are evergreen; they are called evergreen.他打理着他栽在车道两旁的花坛和常青树。He tends the flower beds and eve...
土壤的采样使用芯形采样器.Soil is sampled with a core sampler.为了保持样品沉积物的层次结构, 就要用空心铁管采样器.To take samples that retain the larger structure of the sediment, a core sampler is used.我国降水自动采样器的现状 、 存在的问题和今后的发展趋势.The status, constraints an...
凶手将匕首刺进她的心脏.The murderer thrust a dagger into her heart.他们试图把鱼叉刺进鳐鱼体内，以防它猛摆那蜇人的尾巴报复。They tried to get the harpoon into the ray before the sting tail came lashing over to retaliate.一道强烈的探照灯光刺进黑夜, 直射天空.A powerful searchlig...