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单词 Quadcopter
释义

Quadcopter

原声例句
VOA常速英语_科技

This unusual quadcopter is in the initial stages of testing before a human pilot takes a seat in it.

在人类飞行员驾驶它之前,这个非同寻常的四轴飞行器正在进行初步测试。

经济学人(汇总)

Rather, they were snared by a quadcopter drone dangling a cord that snagged hooks on the target drones' wings.

捕获它们的是一架四轴无人机,它用投放下来的绳索勾住目标无人机机翼上的挂钩。

经济学人 Science and technology

What Ukraine seems to have demonstrated is the naval equivalent of the quadcopter.

乌克兰似乎已经展示了海军的四轴飞行器。

经济学人 Science and technology

Today, 15 of the firm's employees produce roughly 5,000 quadcopter bombers a month.

如今,该公司的 15 名员工每月生产大约 5,000 架四旋翼轰炸机。

经济学人 Science and technology

Elbit Systems, an Israeli firm, has developed an armed quadcopter that uses computer vision to fly in enclosed spaces.

以色列公司埃尔比特系统公司开发了一种武装四轴飞行器,利用计算机视觉在封闭空间内飞行。

时代周刊 (Time)

A White House fact sheet put out in support of the new measures says criminals could " drop explosive payloads, deliver harmful substances and conduct reconnaissance" using quadcopters.

白宫发布了一份支持新措施的简报,称犯罪分子可能用四轴无人机“投掷炸弹,运送有害物质或开展侦察工作”。

经济学人 Science and technology

Last year the owner of one such factory near Kyiv quietly asked some employees to turn Mavic 3s, a hobbyist quadcopter sold by DJI, a Chinese company, into bombers.

去年, 基辅附近一家这样的工厂的老板悄悄要求一些员工将 Mavic 3s 改装成轰炸机,Mavic 3s 是中国公司 DJI 出售的一款业余爱好者四轴飞行器。

TED演讲(音频版) 2015年3月合集

So in this case, the vest is streaming nine different measures from this quadcopter, so pitch and yaw and roll and orientation and heading, and that improves this pilot's ability to fly it.

在这个实例中, 背心可以分流来自这个直升机的九种不同的测试方式,倾斜,偏航,起伏,定向,前进,这提高了飞行员的飞行能力。

经济学人 Science and technology

In another workshop elsewhere in Ukraine, a team of 30 volunteers is cutting carbon fibre with lasers to produce kamikaze quadcopters that deliver 1.5kg of explosives to targets up to 8km away.

在乌克兰其他地方的另一个车间,一个由 30 名志愿者组成的团队正在用激光切割碳纤维来生产神风敢死队四轴飞行器, 这些飞行器可以向最远 8 公里外的目标运送 1.5 公斤的炸药。

时代周刊 (Time)

Unlike military drones that can cost more than $15 million and look like small airplanes, mini quadcopters can be obtained for a few hundred dollars-and their capabilities are exciting the imaginations of bad guys.

与军用无人机不同的是,军用无人机价格高达1500万美元以上,体型跟小型飞机差不多,而小巧的四轴无人机只需几百美元,其强大的性能也大大激发了心怀不轨之人的想象力。

中文百科

四轴飞行器

一个小型遥控四轴飞行器
飞行中的小型四旋翼飞行器

四轴飞行器又称四旋翼、四转子,是一种多轴飞行器,有四个旋翼来悬停、维持姿态及平飞。和固定翼飞机不同,它通过旋翼提供的推力使飞机升空。它的四个旋翼大小相同,分布位置接近对称。对于简单的设计来说,仅仅通过调整不同旋翼之间的相对速度来调节不同位置的推力,并克服每个旋翼之间的反扭力矩,就可以控制飞机维持姿态、或完成各种机动飞行。这一点和直升机不同,常见的直升机有两个旋翼,尾桨只起到抵消主旋翼产生的扭矩,控制飞机偏航运动的功能。

早期飞机设计中,四轴飞行器被用来解决旋翼航空器的扭矩问题。主副旋翼的设计也可以解决扭矩问题,但副旋翼不能提供升力,效率低。且使用尾桨的设计在结构上比使用多旋翼要复杂很多。因此四轴飞行器是最早的一批比空气重的垂直起降飞行器。但是早期的型号性能很差,难于操控和大型化。尤其是油门的控制难以做到精确和迅速。更加上传统的直升机构型在巡航时的效率要优于四轴飞行器。故此在直升机的技术问题得以解决后,四轴飞行器迅速从飞行器设计方式中销声匿迹了。

英语百科

Quadcopter 四轴飞行器

A Maker Faire quadcopter in Garden City, Idaho
A quadcopter being recovered after photographing the Head of the Charles regatta in Cambridge, Massachusetts.
Flying prototype of the Parrot AR.Drone
Parrot AR.Drone 2.0 take-off, Nevada, 2012

A quadcopter, also called a quadrotor helicopter or quadrotor, is a multirotor helicopter that is lifted and propelled by four rotors. Quadcopters are classified as rotorcraft, as opposed to fixed-wing aircraft, because their lift is generated by a set of rotors (vertically oriented propellers).

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更新时间:2025/6/18 18:41:00