Unmanned flight is the future of domestic aviation.

无人飞行是国内飞行的未来趋势。

An unmanned military test glider did it in 2011.

这麽多数字，为什麽我只说两个? 难道我只是要省时间吗?

I think it has applications for unmanned space flight.

我觉得它足以应用在无人" 驾" 驶太空飞行上。

He is a big supporter of using unmanned aircraft.

而且他是使用无人驾驶飞机的一个强有力的支持者。

The wings of the unmanned MQ-9 are 20 meters wide.

无人机MQ-9的机翼宽20米。

It would be the world's first unmanned sample return.

这将是世界上首次无人驾驶样本返回。

That includes things like ammunition, armored vehicles and unmanned aircraft systems.

这包括弹药、装甲车和无人机系统。

Two types of unmanned aircraft are now approved for civilian use.

现在有两种无人机允许用于民用用途。

The unmanned flight is scheduled to last four and half hours.

无人飞机的试飞将持续4个半小时。

The pentagon showed off the world's largest unmanned surface vessel.

五角大楼展示世界上最大无人水面舰艇。