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空中交通管制服务
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空中交通管制服务
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空中交通管制服务
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air traffic control service
空中交通管制服务
通过通信、导航和监视等设施设备,按照规定的管制规则,对航空器进行管制指挥,给航空器配备飞行间隔,以防止航空器与航空器相撞以及航空器与障碍物相撞,保障和促进空中交通流有序进行。
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mural in Han tomb,Anping
Mural in Wang Gongshu’s Tomb
mural in Yanshan Temple
Mural in Zhang Shiqing’s Tomb
Mural Painting
mural painting in tombs of Han Dynasty in Wangdu
mural painting in Yongle Temple
mural painting of Three Kingdoms,Jin,Southern and Northern dynasties
mural painting of tomb of Han Dynasty in Dahuting
mural painting of tomb of Han Dynasty in Horlinger
mural painting restoration
mural paintings of Liao and Jin Dynasties
mural quadrant
Murals at Sigiriya
murals in Chongfu Temple
Murals in Cui Fen’s Tomb
Murals in Fahai Temple
murals in Guangsheng Temple
Murals in Jiyi Temple
murals in Kaihua Temple
Murals in Li Chongrun's Tomb
Murals in Li Shou’s Tomb
Murals in Li Xianhui's Tomb
Murals in Li Xian’s Tomb (Northern Zhou Dynasty)
Murals in Li Xian’s Tomb (Tang Dynasty)
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