Movement 4
AnimatedOriginal 

4. A method of transmitting motion from a shaft at right angles to another whose axis is in the same plane. This is shown with a crossed belt. An open belt may be used, but the crossed one is preferable, as it gives more surface of contact.

亚洲日韩色欧另类欧美_亚洲日韩中文字幕日本有码_亚洲日韩看片无码