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1·Aircraft control system is a key system to ensure flight safety.

飞机操纵系统是一个控制飞机飞行安全的关键系统。

2·The maintenance Mistake is an important factor threatening the flight safety.

维修差错是影响飞行安全的重要因素之一。

3·To predict helicopter vortex ring state boundary is necessary for flight safety.

直升机涡环状态边界的确定对直升机飞行安全具有重要意义。

4·Commit other ACTS endangering flight safety and disturbing the order in aircraft.

危及飞行安全和扰乱航空器内秩序的其他行为。

5·Aircraft icing is an important weather phenomenon that can af fe ct the flight safety.

飞机积冰是一种能影响飞行安全的重要天气现象。

6·It is assurance of flight safety to achieve the high reliability of flight control system.

飞行控制系统的高可靠性是飞行安全的重要保证。

7·Now we'll demonstrate the in-flight safety information, please pay attention to our cabin crew.

现在我们的乘务员将在机舱内向您演示安全须知信息，请您留意。

8·Flight safety is the vitality of airline industry and is subject matter for civil aviation carrier.

安全是航空运输业的生命力，是航空运输企业永恒的主题。

9·The natural obstacles that affect flight safety on air route shall be marked on aeronautical charts;

第八十五条航路上影响飞行安全的自然障碍物体，应当在航图上标明；

10·Although flight safety record is good, but the difficulty of landing at the airport is still very large.

尽管飞行安全记录不错，但在该机场降落的难度还是很大的。