亚洲视频免费一区,国产欧美综合一区二区,亚洲国产观看,91精品啪在线观看国产91九色,日本又黄又粗暴的gif动态图含羞,麻豆国产一区二区在线观看,中文字幕在线二区

Burning system of Beijing Olympic Torch

Updated: 2007-04-26 21:00The burning system of the torch is designed by China Aerospace Science & Industry Corporation. Its stable burning technique and adaptability to the environment have reached a new technical level. It can stay alight in severe weather conditions such as strong wind, rain, snow, hail, etc. The flame can also be identified in sunshine and areas of extreme brightness so as to satisfy the requirements of capturing photographic images and video footage.