Twin channels are utilized for simultaneous time-integrated photographicrecording and for time-resolved X-ray streak camera recording.
双通道同时完成X射线衍射的时间分辨和空间分辨；
2
"photographic works" means artistic works created by recording images of objects on light-sensitive or other materials with the aid of devices;
摄影作品，是指借助器械在感光材料或者其他介质上记录客观物体形象的艺术作品；
3
And then further you put some recording device, which in those days was a photographic plate, far across a room. So you take a tiny, tiny Angle and you go far enough across the room.