... 3,liner error compensation 4,axis:1,2,3 cylindrical grinding machine readoutfunction 1:zero clearing 2:reset 3:mm/inch mode ... and wear-resisiting,good shield.3,independent power,widely used,high stabilization,capacity of resisting disturbance well4, the power source and the ... signal have a good capacity of resisting disturbance,durable keyboard,easy to change5,the catalogue ...