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。

youdao

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。

youdao

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。

youdao

It was blamed on a mid-air collision with a Libyan MiG 23 fighter jet.

BBC: Calls to re-open Libya plane 'crash' investigation

Even before the mid-air collision over the South China Sea caused more turbulence in Beijing-Washington relations, the arms issue was making its own waves.

CENTERFORSECURITYPOLICY: Needed: A Real Commitment to Taiwan

It greatly complicated the mid-air collision between a Chinese fighter and an American spy plane in 2001, which the PLA had (wrongly) blamed on the Americans.

ECONOMIST: Less biding and hiding