But actually drawing the stripe ? a winner of multiple emmy awards for technical achievement ? is a high - tech trick somewhat akin to the “ blue screen ” used to superimpose computer - generated maps behind television weather forecasters 但真正画出这条线的是某种高科技手法（曾多次获得艾美奖的技术成就奖） ，有点类似电视气象报告中用来叠印在电脑地图上的蓝幕技术。
