With a three-screen installation, Heliocentric uses time-lapse photography and astronomical tracking to plot the sun's trajectory across a variety of landscapes.
“金乌”展上的作品都是作者利用三屏相机的延时拍摄及天文跟踪技术，走遍大江南北，追逐太阳拍摄而成。
2
There are three conference rooms each of which is equipped with a screen, flipchart and audio visual equipment.
有3间会议室，每间都装有屏幕、挂纸白板和视听设备。
《柯林斯英汉双解大词典》
3
Instead, they were all inside, alone or in groups of two or three, their faces a few inches from a screen, their hands doing things Montessori surely did not imagine.