Turning fear into excitement Now, let's go back to the internal negotiations about the roller coaster ride.
将恐惧转化为兴奋现在，让我们回头思考一下关于玩不玩过山车的心理活动。
2
Idle Roller: Free turning non-sprocketed rollers for guiding film through its appropriate path.
空转轮： 自由转动的，非扣片的卷轴，用于引导胶片通过正确的路径。
3
The turning ring is rotationally arranged in the roller and encloses the roller, and the turning ring is provided with a plurality of accommodating grooves.