Noun:

1. the person who operates the projector in a movie house

projectionn.投影；投射；规划；发射；凸出物；预测；放映projection table投影表projection suite放映用房projection image投影图像projection lemma投影引理projection plane射影平面,投影面,投影平面projection paper投影纸projection print投影相片projection grads梯度投影法projection ratio凸出比projection error投影差

1. He was a projectionist at Silver Cinema.
   他是银都戏院的一个放映员。
2. The projectionist runs the film back at the end of every performance.
   电影放映员每次播放完毕都要将胶片倒回来。