Projectors for film , television studios , stage and photographic use ; colour filters for stage and studioprojectors , colorimetric parameters 电影电视摄影棚舞台和摄影用放映机.第40部分:舞
65 inside , an era is preserved . the telephone is a heavy , rotary model . there is no vcr , no cable 屋内，俨然是保存完好的一个旧时代。电话是笨重的拨盘式的那种。没有录像放映机，没有有线电视。
Air - conditioning , the use of the projection equipment and service from projectionists , and basic ushering service for functions with audience only 空气调节放映机和放映员，以及基本的带位服务
Slide projectors and slides ; overhead projectors , din - test transparency for the examination of sharpness for projection and viewing conditions 幻灯放映机和幻灯片.架空放映机，放映和观看条件下检
