I also used the projector in a house and in my office, setting it on a table and turning off the lights for the best view.
我还在别人家里和我的办公室用了这个投影仪，将它固定在桌子上，关掉灯，以达到最佳效果。
Using a projector and rows of water drop emitters, a multi-layer display that can be used for text, videos, and interactive games is created.
使用一个投影仪和很多行水滴发射器，一个可以显示文字，视频和互动游戏的多层显示就产生了。
A digital optical projector is used as the optical source, and the electrical grating is generated by computer.
实验系统光源采用数字光学投影仪，并用计算机生成电子光栅。
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