After iterative and rigorous practice, it turned out that it can meet the demand when using length of common normal to measure gears modulus.
经过严密计算和实践反复验证，用公法线长度测绘法确定齿轮模数可满足要求。
2
This article introduces a method to determine the plastic membrane tensile modulus by using a normal mart electron tensile testing machine and computers.