With the improvement of the aircraft performance at low altitude and high speed, bird strike has been hidden trouble of safe flight.
随着飞机低空高速性能的显著提高,鸟撞问题日益成为危及飞行安全的隐患。
参考来源 - 基于ABAQUS的风挡鸟撞有限元分析及试验研究The bird strike perplex the mankind for long time, the threat flies an international hard nut to crack of the safety.
鸟撞是长期以来困扰人类，威胁飞行安全的一个国际性的难题。
参考来源 - 机场无线驱鸟网络的设计与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
N a collision of an aircraft with a bird 鸟击; 飞机与鸟相撞
The number of reported bird strikes has increased since nineteen ninety.
自九十年代以来，鸟撞事件的报告数量一直在增加。
The reports of bird strikes come from eyewitnesses on the ground, " said Brown.
有多个报道称地面目击者看到飞鸟，”布朗说。
Another reason for the increase in bird strikes is the growing popularity of air travel in the United States.
另一个导致鸟撞事件增加的原因是美国空中旅行的普及程度的增加。
Another reason for the increase in bird strikes is the growing popularity of air travel in the United States.
VOA: special.2009.04.01
But studies show only about twenty percent of bird strikes to civilian aircraft are reported.
VOA: special.2009.04.01
The number of reported bird strikes has increased since nineteen ninety.
VOA: special.2009.04.01
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