method of tangent offset

• 切线支距法

method of tangent offset的用法和样例：

例句

1. There are many methods to measure the circular curved line in circuitry construction survey.Angle offset method and tangent offset method are usually used.
   摘要在线路施工测量中，圆曲线测设方法有很多，通常采用偏角法或切线支距法。