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１概述 国贸溜冰场是位于北京建国门外中国国际贸易中心大厅地下二层的人造冰场，是由英国人设计的，其电声系统是信息产业部电子第三研究所设计。 国贸溜冰场在地下二层，和地下一层共用一个防雨透光矩形拱顶，溜冰场全景见图１。其剖面图如图２所示。该溜冰场的电声系统，满?
1 Overview China World Rink Arena is an artificial ice rink located on the second basement floor of the lobby of the China World Trade Center in Beijing outside of Jianguomenwai. Designed by the British, the electroacoustic system is designed by the Third Institute of Electronics, Ministry of Information Industry. China World Trade Skating Rink is on the second basement floor and shares a rainproof and translucent rectangular vault with the basement floor. The skating rink panorama is shown in Figure 1. The sectional view is shown in Figure 2. The ice rink electro-acoustic system, full?