Relationship and control of axis sealing and internal pressure directly affects deformation process in tube hydroforming.圆管液压成形过程中的轴向密封力与内压力的关系及控制直接影响到圆管的成形状态.These lasers usually employ chemical combustion to energize d...
The cherry blossom came out early in Washington this year.今年华盛顿的樱花开得很早。Why do some people take longer than others to blossom?为什么有的人比他人大器晚成？The trees are in blossom .树上鲜花盛开。...
The microphones had been switched off.这些麦克风已关掉。Somebody forgot to bring along the U-bolts to clamp the microphones to the pole.有人忘了带把麦克风固定在支架上的U形螺栓。They descended from the plane into a forest of microphones and cameras.他...
那些墙壁通体上下都是白的。Throughout, the walls are white.这种衬衫有三种颜色: 白的 、 浅蓝的、土黄的.These shirts come in three different colours: white, pale blue and khaki.黑是白的对立面.Black is the opposite of white....