drive shaft slip joint

Experiment on sliding connection parts of asphalt concrete impervious facing;

沥青混凝土防渗面板滑动接头的试验研究

Three different five-axis machining center designs, double rotary table, double pivot spindle head, rotary table-pivoting spindle head, are mainly described.

介绍了双旋转工作台、双旋转主轴头、摆动主轴头加旋转工作台这三种典型结构高速五轴加工中心的特点及其应用,并综述了五轴加工技术的优势和高速五轴加工机床的关键技术。