单词projection-machine
网络: 放映机
Notice for use: Can be used for lighting and projection machine lights also can be used for regular lighting.
使用事项：可作照相及放映灯用，也可作为普通照明用。
If the projection machine were slowed down very materially, your sense of sight would detect each separate picture and the gap between.
假如放映机非常显著地减速，你的视觉会觉察到每一单独的图片，以及图片之间的间隙。
Projection machine and its screen
投影仪及屏幕
How to Choose Projection Machine and Screen
投影机与屏幕的选择