官员们对于会谈情况保持缄默.The officials maintained a wall of silence around the talks.我们不应对这件可耻的事保持缄默.We should not pass over this disgraceful affair in silence.侦探们犯了难，半岛上各个群体抱成一团，达成了保持缄默的密约。Detectives have run into a conspiracy of ...
潜水员下潜到超过危险线的深水中去了.The diver went into the deep water beyond the danger limit.长度是线的属性.Length is predicable of a line.点是线的开始.A point is inceptive of a line....
介绍了平齿根齿侧配合英制渐开线花键计算、测量的基本公式及方法.This paper introduces calculation and measurement of BRITISH Standard Involute splines.拖到绘图页上. 拖动黄色菱形可调整中心圆 、 齿根圆和外径的大小.Drag onto the page. Drag yellow diamonds to resize hub circle, root c...
Carpel The female reproductive organ of a flowering plant.心皮:有花植物的雌性生殖器官.Plicate carpel 6 ~8, initiated in a whorl simultaneously.心皮6～8枚, 呈一轮同时发生,为对折型心皮.The browning of Yali pear appear carpel at first , and then appear ...