The anti-collision equipment currently fitted to jets has already helped make mid-air encounters between airliners rare, but many light aircraft and helicopters are not fitted with such kit.
喷气式飞机目前装备的防撞设备已让大型客机的空中碰撞鲜有发生，不过许多轻型飞机和直升飞机并未加载此类设备。
If pilots keep getting unnecessary alerts, they will tend to ignore them.If an alert is not issued when it should be, however, the result can be a mid-air collision.
如果它不断发出“狼来了”的警告，飞行员将会逐渐无视它的存在，反之，如果紧急关头警报没有及时发出，后果可能是撞机。
If an alert is not issued when it should be, however, the result can be a mid-air collision.
而如果在必要时未能发出预警，其结果就可能是空中撞机。
So it is very necessary to study mid-air collision.
因此，对空中飞行碰撞风险问题进行研究是非常必要的。
A business jet came close to a mid-air collision with a Turkish Airlines passenger plane after taking off from London City Airport, a report has said.
报道称，一架商务喷气机从伦敦城市机场起飞之后差点与一架土耳其航空客机相撞。
It was a clear summer day and it's not yet clear how the mid-air collision came about.
这是一个晴朗的夏天，撞击事件怎样发生目前还不清楚。
It was a clear summer day and it's not yet clear how the mid-air collision came about.
这是一个晴朗的夏天，撞击事件怎样发生目前还不清楚。
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