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1·Territorial air security is an important constituent of overall national security.

空防安全是国家总体安全的重要组成部分。

2·A number of enemy planes were brought down the moment they intruded into our territorial air.

许多敌机一侵入我们的领空就被击落。

3·It will strengthen the people's army, navy and air force, consolidate national defence, safeguard our territorial integrity and sovereignty and oppose aggression by any imperialist country.

它将加强人民的陆海空军，巩固国防，保卫领土主权完整，反对任何帝国主义国家的侵略。