For this demonstration, Boeing, under Army direction, used a Boeing AH-6 helicopter as a surrogate for Sky Warrior, the Extended Range/Multi-Purpose UAS that is not yet available.

此演示中，波音在美军的监督下，利用其AH-6直升机作为天空战士（暂不可用的超距、多功能无人机系统）的替代品。

youdao

Bill announced out of a clear sky that he was going to quit the job and join the army.

比尔突如其来的地宣布他要辞掉工作去参军。

youdao

US Army paratroopers of the airborne combat team from the1 st Battalion, 508 th Infantry descend from the sky over northern Italy.

美国第508步兵团第1营的士兵在义大利北部进行空中跳伞演练。

youdao

As the weekend went on, the miracles kept coming the kindness of the scattered police, the 'food-drop' by an Army helicopter, and flowers from the sky.

VOA: special.2009.08.10

The symphonious clamor was everywhere, filling the sky like the cloud of red dust that arrowed past them to the south and left the sky dim, it was the great processional of the Union armies, but of no more substance than an army of ghosts.

NPR: E.L. Doctorow on Sherman and 'The March'

But if it works, Army field commanders will be able to transmit real-time pictures of a battle to fighters in the sky.

FORBES: Magazine Article

The Syrian Electronic Army claims to have been behind similar attacks on the twitter feeds of Agence France Presse news agency, Sky News Arabia, al-Jazeera mobile and CBS News.

BBC: AP Twitter account hacked in fake 'White House blasts' post