计算工具直径的两种方法

On Two Ways of Calculating the Diameters of Tools

利用圆杆状工具在刑事案件现场中遗留的撬压痕迹,根据弦高法和三点法的计算原理,可以得到形成痕迹的工具直径的大小。弦高法和三点法的计算原理有所不同,但痕迹的处理方法是一致的。

According to the calculation principles of 'hypotenuse-height method' and 'three-point method' and the prizing and pressing traces in the criminal scene causing by round-pole shape tools , we can get the diameters of the tools . The calculation principles of 'hypotenuse-height method' and 'three-point method' are different , but the methods of dealing with the traces are identical.