People used to measure the radius of nonplastic circular by the length of bowstrings in the geometric calculation .
在几何量测量中一直以弓高弦长等方法测量
圆弧半径值。
(可)塑性的People used to measure the radius of nonplastic circular by the length of bowstrings in the geometric calculation .
在几何量测量中一直以弓高弦长等方法测量圆弧半径值。
In order to reduce the error in the calculation, this article raises a measure method to the radius of nonplastic circular arc which basis on the principle of geometry.
低测量误
,提出对圆弧直径测量的方法。
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