综合一区欧美国产,99国产麻豆免费精品,九九精品黄色录像,亚洲激情青青草,久久亚洲熟妇熟,中文字幕av在线播放,国产一区二区卡,九九久久国产精品,久久精品视频免费

Development

Air traffic management system passes appraisal

By Huang Zhiling (China Daily Sichuan Bureau)
Updated: 2010-12-07 21:54
Large Medium Small

China's new generation of national air traffic management system developed by the country itself passed State appraisal in Mianyang, Sichuan Province, on Monday.

The system has made breakthroughs in the core technology of the new generation of air traffic management, said Xia Xinghua, deputy chief of the Civil Aviation Administration of China.

Thanks to the introduction of the system, the delayed landing rate of flights from East China to Beijing has dropped by nearly 20 percent, he said.

衡阳市| 马龙县| 行唐县| 沾化县| 光山县| 闻喜县| 剑河县| 海宁市| 资兴市| 贡山| 盱眙县| 织金县| 白河县| 军事| 南平市| 灵川县| 同心县| 金平| 阿拉善左旗| 陵水| 和田市| 晋宁县| 桂东县| 建德市| 商都县| 开远市| 日喀则市| 晋宁县| 栖霞市| 峨山| 阳信县| 共和县| 金寨县| 白银市| 社旗县| 贞丰县| 贵阳市| 元谋县| 浮山县| 政和县| 高邮市|