螺旋齿轮齿 meaning in Chinese

spiral gear teeth
spiral gear tooth

Normal section linear diagram of two gears " surfaces , which is on the arbitrary section , has also been protracted . the writing validated the correctness of the mathematical model and experimenting on contact region of spiral helical gear ' s surface validates theoretical analysis
利用计算机模拟了两齿面在三维空间中接触的情景；描绘了三维空间中相对速度的大小及方向；绘制了任意法截面上两齿面法截线的图形。对螺旋齿轮齿面接触区进行了实验研究，验证了本文中数学模型及理论分析的正确性。