The clatter of the helicopter's rotors is very loud.

直升机的螺旋桨转动声音巨大。

These are the big ones with the two rotors on the top.

这些直升机顶部有两个转子。

There's no rotor, there's no prop, there's no jet.

没有旋翼，没有起落架，它不是喷气式飞机。

Today's the firm's volocity is a two-seater electric aircraft with 18 rotors.

如今，该公司的volocity 是一种带有18个转子的双座电动飞机。

Counting its rotors, its lander, its work with the European Space Agency and its orbiters.

算上它的旋翼、着陆器、与欧洲航天局的合作以及它的轨道飞行器。

Enough energy to send a springtail spinning at 374 flips per second–almost 40 times faster than a spinning helicopter rotor.

足够的能量使跳虫以每秒 374 次翻转的速度旋转——几乎比旋转的直升机旋翼快 40 倍。

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

旋翼的气流使腐烂的尸体碎片和蛆虫四处飞散。

Its " Volocity" two-seaters are fitted with 18 electric-powered rotors on a circular frame above the fuselage.

他们的" Volocity" 双座飞行器配备了一个圆形框架，安装有18个电动旋翼。

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

被直升机的旋翼叶片吹偏的空气，也就是所谓的下冲，会把雪从树梢吹走。

This latest design features rotors that can lift out of the water for easier access for repairs.

这种最新设计的螺旋桨可以升出水面，便于维修。