Intermediate Sprocket: An intermittently rotated sprocket, which positions the film in the aperture of a projector and moves it after the exposure cycle.
英
美
- 中间输片齿轮:一种间歇旋转的扣片齿轮,它将胶片定位在放映机的片门中,并且在曝光周期后移动胶片。