Among them the automatic generation ofdimension chain is the foundation of CAT and the described design function offers basis of tolerance analysis and tolerance synthesis.
To specify a degree of accuracy, it is necessary to add tolerance figures to the dimension.
为了详细标明精度等级，有必要在尺寸上增加公差数字。
3
The conception of the precision of the main parts for dry battery application and the working chart of the toleranceof the dimension and shape and the coarse degree of the surface were put forward.