但是将这种思想给投射投影到人本身，或者生活中来指导我们的行为时，那么这种思想才是有意义的。
Only when this thought can shoot light to the human body or guide out actions in real life can it be meaningful.
一个安装了投影仪的臂环直接将用户界面投射到了用户的手腕上。
An armband equipped with a projector displays a user interface directly onto the wrist of a user.
一架投影仪从店内向窗玻璃上投射出影像，安在玻璃上的一层薄薄的触摸板使触摸屏得以运转。
A projector beams the images onto the window pane from the inside of the shop, while a thin touch foil mounted on the glass powers the touch screen.
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