English translation for "double back gear"

双背齿轮装置
双过轮

Similar Words：

"double azimuth head" English translation, "double b" English translation, "double back" English translation, "double back body drop" English translation, "double back elbow" English translation, "double back geared" English translation, "double back geared lathe" English translation, "double back layout" English translation, "double back open promenade" English translation, "double back somersault" English translation