The second landed safely but it sustained damage to its rotor blades after it apparently struck a wall. That helicopter remains on the ground.

第二架安全着陆，但在撞到墙后叶片受损，这架飞机仍在地面。

You had to tip the chopper hard to one side to keep the falling person away from the rotor blades.

你必须让直升机向一侧大幅度倾斜，以便让坠落的人远离飞速转动的叶片。

The air deflected by the choppers rotor blades, known as down wash, blows snow off the treetops.

被直升机的叶片吹偏的空气，也就是所谓的下冲，会把雪从树梢吹走。

As that testing continues on Mars, teams on the ground have been experimenting with new rotor blades.

随着测试在火星上继续进行，地面上的团队一直在试验新的叶片。

The team was measuring tests of the rotor blades with sensors, cameras and other equipment.

该团队正在用传感器、摄像头和其他设备测量叶片的测试。

And the draft from the rotor blades sent bits of decomposing body and maggots flying everywhere.

的气流使腐烂的尸体碎片和蛆虫四处飞散。

NASA has said such rotor blades should be able to support bigger, more complex helicopters.

NASA曾表示，这应该能够支持更大、更复杂的直升机。

During the tests, engineers reported the rotor blades had reached speeds nearly equal to Mach 1, the speed of sound.

在测试期间，工程师们报告说，叶片的速度几乎相当于音速1马赫。

The car is electric-powered and moved by eight rotor blades.

这辆车是电动的，由八个转子叶片驱动。

The MI26 has electrically deiced main and tail rotor blades.

米-26的主和尾叶片具有电加热除冰功能。

But just in case, it was the rear rotor blade that took Dr. Romano's arm.

以防万一，是尾桨叶片夺走了罗曼诺医生的手臂。

Must be something wrong with the main rotor blades.

肯定是主叶片出了问题。

Ingenuity, a small, autonomous helicopter launched to Mars in 2020, has now powered up its tiny rotor blades and flown for the 70th time, traveling 850 feet and photographing the red planet's rocky surface throughout its journey.

2020年发射至火星的小型自主直升机“机智号” ，如今已启动其微小的叶片， 完成了第70次飞行。它此次飞行距离达850英尺， 并在整个旅程中拍摄了这颗红色星球崎岖地表的照片。 作为首架在地球以外行星上依靠自身动力飞行的飞行器， “机智号” 的持久性无疑是另一项令人惊叹的成就。

Light aircraft circling, occasional brush of white noise from the A4130, a helicopter close enough to hear detailed sound of the rotor blades, then the pitch phasing retreat.

轻型飞机盘， A4130公路上不时传来轻微的白噪音，一架直升机近得足以听见叶片的细节声响，随后音调渐变， 逐渐远去。

A conventional gas turbine, as used in power stations or jet engines, burns fossil fuel to create a hot, high-pressure gas that spins rotor blades.

一传统的燃气涡轮机， 如用于发电站或喷气发动机中的，燃烧化石燃料以生成高温高压气体， 从而驱动转子叶片转。

An image beamed to Earth last week showed that a portion of one of the miniature Whirligig's twin rotor blades had broken off.

上周传回地球的一张图片显示，迷你版玩具“陀螺”的一个双叶片部分已经断裂。

One of the helicopters encountered hydraulic problems, another was caught in a sandstorm, and a third showed signs of a cracked rotor blade.

一架直升机遭遇液压故障，另一架被困于沙尘暴中，还有一架显示出叶片裂纹的迹象。

Outside the cabin windows the long rotor blades slowly swung by and the pilot glanced astern at the whirring tail rotor.

在机舱窗外， 长长的桨叶缓缓摆动， 飞行员向后瞥了一眼呼呼作响的尾桨。

Terrible noise of rotor blades and this sort of blast of hot aviation fumes filling the air.

发出刺耳的噪音，还有那热气流和航空废气充斥着空气。

Again and again, their rotor blades scythe dangerously close to the icy slope.

一次又一次，他们的刀片危险地接近冰坡。