formula of measurement
... 丈量换算表：measurement table 丈量公式：formula of measurement 丈量吨位开口封板：tonnage board ...
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本文根据圆的渐开线原理和两点间的距离公式，得出两种用放射式丈量法测画不分道跑起跑线的新画法。
This article utilizes the theory of involute of circle and the formula of the distance between two points to obtain two radiated measurement ways of defining the starting line.
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