One is called "edge-lit", with lights set around the televisionframe; the other is "full-array," with lights set behind the screen in a grid pattern.
一种是“侧光式”，灯管安排在电视机的侧面；另一种是“全阵列式”，灯管以网格状排列于屏幕的后方。
2
In the main structure construction of the complex building of Beijing Television project, hydraulic climb frame is used for the construction of L-shaped complex rectangle columns at the four corners.
北京电视中心综合业务楼主体结构施工时，四角的L形复合巨型柱采用液压爬架。
3
National television scanning system is different, in China is 25 frames per second, each frame of 625 lines.