A copter appeared in the sky above them.

一架直升机出现在他们上空。

The helicopter was hovering about 100 metres above the pad.

直升机在台一百米的上空盘旋。

The STAT Medevac company of Pittsburgh orders these 6 helicopter.

这6架直升机是匹兹堡的STAT Medevac公司订购的。

Ambulancemen now believe that helicopters are vital tools of the trade.

救护人员现在都认为直升机是他们这一行极其重要的工具。

Expeditionary war needs airlift, sealift, jets, helicopters, drones and other “enablers” like field hospitals.

远征战事需要空运、海运、喷气战斗机、直升机、无人机和其他诸如野战医院之类的“激活器”。

Army helicopters hovered overhead.

军用直升机在空中悬停。

Redbird(Guangzhou) Helicopter Service Co., Ltd originates from General Aviation and has over 15 year flight experience.

广州市鹏直升机应用服务有限公司来自通用航空领域，拥有十五年以上航飞经验。

Aircrewman Officer II Ko Ho Fung briefs a group of university students who visits the Headquarters of the Government Flying Services (GFS).

一群大学生参观飞行服务队总部，二级空勤主任高可风作向导，跟众人讲解直升机的装备。

A dragon kite model has been added to the game files. They also added two icons for the paper zeppelin and gyrocopter.

新的[龙型风筝模型]，[折纸地精飞艇]、[折纸直升机]的新图标被加入游戏中。

Security forces found the escapee in the mountainous area of Vinai in Matta tehsil of Swat, and moved him to safety by helicopter.

据，全部队在斯瓦特河谷地区现了成功逃脱的中国工程师，并用直升机将他送到全地带。

The invention belongs to a means of transport, which contains a slewing gear, and provides a vehicle, a car, a rail vehicle, an aerocar and a helicopter.

本明属于含有转动装置的运输工具，提供了一种车轮、车辆、火车、飞行车和直升机。

In Chapter 3, based upon the blade second-order lifting-line model and rotor free-wake model, an analytical method is developed for predicting the rotor wake structure and BVI airload.

基于桨叶二阶升力线理论和旋翼自由尾迹模型，本文在第三章建立了一个适合于直升机旋翼尾迹结构及桨-涡干扰气动特性分析的方法和模型。

A local resident, Sher Ali, said the tribesmen in the Angor Adda area had been on alert since September 3 when US special forces dropped by US helicopters killed more than 20 civilians.

一名当地居民，谢尔阿里说，部落，在angor adda面积已提高警觉，自9月3日，当美国特种部队下降了美军直升机死亡， 20多平民。