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。

This caused the unmanned aircraft to crash into the sea.

这导致无人机坠入黑海。

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。

A perfect launch for NASA has an unmanned spacecraft goes to Mars.

美国航空航天局（NASA）成功发射火星无人探测器。

An unmanned Progress space capsule has docked with the International Space Station.

“进步号”无人太空舱已与国际空间站对接。

Two unmanned spacecrafts were launched as part of the Voyager missions in 1977.

1977年，两个无人驾驶飞船作为“航行者”号任务的一部分发射。

Today, for an unmanned ship to reach Mars, it takes almost a year.

今天，一艘无人飞船要到达火星，需要将近一年的时间。

Two unmanned spacecraft were launched as part of the Voyager missions in 1977.

1977年，两艘无人驾驶飞船作为“旅行者”号任务的一部分发射。

India deployed an unmanned spacecraft in an orbit around the moon in 2008.

印度于2008年在月球轨道上部署了无人航天器。

Tensions remain high following Iran's downing of an unmanned US military aircraft.

伊朗击落美国一架无人驾驶军用飞机后，两国关系依然紧张。

The unmanned rocket blasted off from Cape Canaveral but failed to reach orbit.

无人火箭从卡纳维拉尔角发射升空，但未能到达轨道。

On Monday the North flew five unmanned drones in the South's airspace.

周一，朝鲜向韩国领空发射了五架无人机。

The North flew five unmanned drones in the South's airspace on Monday.

周一，朝鲜向韩国领空发射了五架无人机。