The fomula between the numbers of link of kinematic chain、the numbers of prismatic pair、the numbers of connecting rod ......

The segment erector is a key part of the shield machine which holds, transports and locates the concrete segments to con......

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

根据链开放副间的边数综合七杆和九杆二自由度平面运动链的类型得出了七杆运动链的４种类型和九杆运动链的３６种类型。......