Nothing this large would achieve powered flight until the 20th century, 65 million years later.

直到六千五百万年后的二十世纪才出现了和它一样庞大的动力飞行物。

NASA's Mars helicopter is preparing to make its first powered flight on another planet.

美国国家航空航天局（简称NASA）的火星直升机正准备在另一个星球上进行首次动力飞行。

Ingenuity took off, hovered and landed on Mars, the first powered controlled flight on another planet.

“机智”号在火星上起飞、盘旋和着陆，这是在另一个星球上的第一次动力控制飞行。

The helicopter made history in April by becoming the first aircraft to perform a powered, controlled flight on another planet.

这架直升机在4月份创造了历史，成为第一架在另一个星球上进行动力控制飞行的飞机。

It's not carrying any scientific instruments. Ingenuity's purpose is to see if powered helicopter flight is possible on the red planet.

该直升机没有携带任何科学仪器。“独创”号的任务是测试动力直升机能否在红色星球（指火星）上飞行。

The first oxygen extraction came one day after NASA carried out the first controlled, powered flight of an aircraft on another planet.

第一次氧气提取是在美国航空航天局在另一颗星球上进行首次受控动力飞行后的一天实现的。

It's got to deploy a $23 million drone helicopter whose purpose is to find out if powered chopper flight is possible on Mars.

“毅力号”上将安装一架价值2300万美元的无人直升机，以确定动力直升机能否在火星上飞行。

On December 17, 1903, the Wright brothers achieved their goal of powered flight.

1903 年 12 月 17 日，莱特兄弟实现了动力飞行的目标。

It's got to deploy a $23 million drone helicopter who's purpose is to find out if powered chopper flight is possible on Mars.

同时火星车上要安装一架价值2300万美元的无人直升机，以确定动力直升机能否在火星上飞行。

" Less than a year ago, we didn't even know if powered, controlled flight of an aircraft at Mars was possible, " he said.

" 在不到一年前，我们甚至不知道在火星上是否有动力控制飞机飞行的可能。"

Second, the idea that large pterosaurs couldn't use powered flight because they were too heavy.

其次，大型翼龙因为太重而无法使用动力飞行的想法。

There's no gliding involved-- powered flight comes first, even on the way down.

不涉及滑翔——动力飞行是第一位的，即使是在下降的过程中也是如此。

Both bats were clearly capable of powered flight and also looked a lot like most modern insect-eating bats.

这两只蝙蝠显然都具备动力飞行的能力，而且看起来也很像大多数现代食虫蝙蝠。

And eventually, it acquired adaptations for powered flight.

最终，它获得了动力飞行的适应性。

So, even though it seems to push the limits of biomechanics, Quetzalcoatlus was probably capable of true powered flight.

因此， 尽管它似乎突破了生物力学的极限，但羽蛇神可能具备真正的动力飞行能力。

One hundred fourteen years later, the Kitty Hawk Flyer has entered a growing field of potential options for powered flight.

一百一十四年后，Kitty Hawk Flyer 进入了一个不断增长的动力飞行潜在选择领域。

The flight lasted only 12 seconds, but it was a historic achievement that proved that controlled, powered flight was possible.

这次飞行只持续了 12 秒，但这是一项历史性的成就，证明了可控的动力飞行是可能的。

He's convinced that the powered, flapping flight of modern birds really did begin on the ground with a running start.

他坚信，现代鸟类的动力扑翼飞行确实是从地面开始的。

In this model, powered flight evolved from a gliding ancestor, which had originally started by leaping between trees or branches.

在这个模型中， 动力飞行是从滑翔的祖先进化而来的，它最初是从在树木或树枝之间跳跃开始的。

Maneuverability -- the ability to change either speed or direction on the fly -- is a hallmark of powered flight in animals.

机动性——在飞行中改变速度或方向的能力——是动物动力飞行的标志。