the act of putting an image of sth onto a surface; an image that is shown in this way 投射；放映；投影；放映的影像
the projection of three-dimensional images on a computer screen
在电脑屏幕上显示的立体影像
laser projections
激光影像
the act of putting an image of sth onto a surface; an image that is shown in this way 投射；放映；投影；放映的影像
the projection of three-dimensional images on a computer screen
在电脑屏幕上显示的立体影像
laser projections
激光影像