The experiment proved that the gear meshing force, excitation frequency is consistent with the theory. Consistent with the actual prototype model is feasible.

通过实验证明齿轮的啮合力、激振频率均与理论相符，样机模型与实际吻合，具有可行性。

youdao

With the help of a machinist, and using a formula he concocted for a stiff, self-lubricating plastic, Fenelon built a crude prototype of the gear and found that the torque required to push the window was half of what the old design required.

FORBES: Technology