半迹和半路可类似地定义。

Semitrails and semipaths have analogous definitions.

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正常中心值显示远端桡尺关节旋转中心从各个方向看均在桡切迹的中半位。

The normal epicenter values indicated that the center of rotation of the distal radioulnar joint fell in the middle half of the sigmoid notch in all positions.

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采用电脑数字控制系统，针距、珠点、半针按钮，自动正反点、倒缝、花样线迹设定，一屏操作，轻松方便。

Adopt digital computerized control system, needle stitch , stitch length, Automatically positive and negative points, backstitch , stitch pattern setting , one screen operation, easy to operate.

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