当你在电视屏幕上看见世界各地的风光和国内外发生的重大新闻事件,或者欣赏着艺术家精彩优美的表演时,可曾想到,这些电视节目大部分是由录象机录制的? 你是否知道,有一种录象机能在月光或星光的亮度下,对夜间动物的生态活动或者边防,海防线上敌情的隐密变化,录制成清晰的图象,而且可以即时放映? When you see the scenery around the world and major news events both at home and abroad on television screens or admire the wonderful performances of the artists, have you ever wondered whether most of these television programs were recorded by video recorders? Did you know , There is a video recorder in the moonlight or starlight brightness, the nighttime animal ecological activities or border, secret changes in defense of the coast of the enemy, recorded as a clear image, but also real-time screening?