It is an undisputable fact that with the growing demand for and global development of civil aviation,the number of planes that take off and land at any airport every day has risen tremendously.

  • 随着全球民航业的发展,人们对航空需求的提高。每天在任何一个机场起起落落的客机数目大大增加,却也是个不争的事实。
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