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....
I'm not ever going to forget what you've done for the nippers.我永远忘不了你为这些小孩子所做的一切。He picked up the hot metal with a pair of nippers.他用一把钳子夹起这块热金属。So what if the little nippers don't read?如果小男孩们不读书又能怎样 呢 ?...