1·To complete the surface tests of 3D profile with CMM, based on tip compensation, the equiangular graduated measurement and equidistance graduated measurement are suggested.
为使测量机完成空间旋转曲面及3D轮廓面的测量，提出等分度测量法及等距测量法。
2·A center's service area of a geographic network is broadly applied in practical life. In traditional method, it is expressed by an isochronous area or an equidistance area.
地理网络的中心服务范围在实际生活中应用广泛，传统方法一般用等时区或等距区表示。
3·The text introduces the two choices of inner gear profile curve of the rolling gear drive and the theoretical reasons of the equidistance curve of inner cycloid and the close an; curve.
论述波式滚动活齿传动内齿轮齿廓曲线的两种选择：内摆线的等距曲线、密切圆弧曲线的理论成因。