The idea was that a person acting as a 'sender' would attempt to beam the image over to the 'receiver' relaxing in the sealed room.
这个想法是，一个人作为一个“发送者”将试图把图像发送给在密封房间里放松的“接收者”。
2
Single beam, stainless steel, melted sealed.
单剪梁，不锈钢，焊接密封。
3
Because the working media of laser is gas, and the pressure difference between the inner apparatus and environment of laser is large, so the window of output laser beam must be sealed.