万能磨床 meaning in Chinese

grinding machines,universal
grindingmachines,universal
universal grinder
universal grinding machine

External cylindrical and universal grinding machines - testing of the accuracy
外圆和万能磨床.精度检验
Specification for workhead spindle noses for grinding machines : cylindrical external , internal and universal types
外圆内圆与万能磨床的转盘主轴头规范
Test code for performance and accuracy of numerically controlled external cylindrical and universal grinding machines
数控外圆磨床和万能磨床性能和加工精度试验规程