group dimension造句

• (4 ) automatically grouping dimensions by their directions, accomplishing the priority level enactment of dimensions and implementing the optimal lay of dimensions on the part drawing under the cad environment
  (4)自动对待标注的尺寸按方向进行分组、完成尺寸的优先级设定、在cad环境下实现尺寸标注在零件图上的优化布置。