English translation for "人字正齿轮"

double helical spur gear
double-helical gear
doublehelical urgear

Similar Words：

"人字缘" English translation, "人字闸槛" English translation, "人字闸门" English translation, "人字闸门凹形支垫座" English translation, "人字针步" English translation, "人字织带" English translation, "人字桁架" English translation, "人字榫" English translation, "人总是离开" English translation, "人总是在变" English translation