With the force measuring system, the milling force is measured, and the experiential formula for calculating milling force is obtained with the method of linearity regression. 通過測力系統測量銑削力，用線性回歸方法對實驗數據進行分析，得出銑削力經驗公式，並驗證了公式在實驗參數範圍內的有效性。
This finding bolsters the so-called gestural theory of language evolution, whose proponents argue that language evolved initially as a gesture system before becoming vocal. 這項發現支持了語言演化的肢體理論，提倡這理論的人認為語言最初是從動作系統開始，後來才發展出語音系統。
