直升飞机

As many as 20 firefighters can rappel to a fire from a turbo-powered Mi-8 helicopter, but haven't forgotten their roots. They also parachute from decades-old biplanes, much as they did when they pioneered smoke-jumping in the 1930s.

虽然一架涡轮透平动力的米-8直升飞机最多可载20名消防员去执行灭火任务，但是俄罗斯的空中护林员们从未忘记它们的本职工作，他们仍然会像上世纪30年代时他们的先驱者那样从已经几十岁的双翼飞机中利用降落伞跳下。

The game has dozens of aircraft to pursue including bi planes , blimps and helicopters gunships .

游戏有打飞机包括双翼机，软式小飞艇和直升飞机武装直升机从事。

Pursued by enemy jet planes while flying over the Indian Ocean with important despatches, he had weighted his body with his machine-gun and leapt out of the helicopter into deep water, despatches and all---an end, said Big Brother, which it was impossible to contemplate without feelings of envy.

当时他携带重要文件在印度洋上空飞行，遭到敌人喷气机追击，他就身上系了机枪，跳出直升飞机，带着文件沉入海底——这一结局，老大哥说，不能不使人感到羡慕。

A mechanical impedence method is described to predict the natural frequences of elastic beam under the condition of dynamic supporting with the example of helicopter tail rptor.

本文以直升飞机尾桨为例，介绍了确定弹性梁在动态支承条件下固有频率的一种机械阻抗方法。

The fuselage of the helicopter is teardrop-shaped, which features a round, glassed-in cockpit and landing skids.

直升飞机的机身是水滴形，一个圆形、围玻璃的驾驶员座舱和登陆橇。

These studies led to designs for flying machines,including helicopters and gliders.

这些研究引发了对于飞行器的设计，包括直升飞机和滑翔机。

Providing gunships for Kenya is part of a larger economic effort it is making in Africa.

为肯尼亚提供武装直升飞机是中国进入非洲巨大经济努力的一部份。

Israeli tanks and troops backed by helicopter gunships have reached the outskirts of Gaza City, cutting off the Palestinian territory's largest city from the rest of Gaza.

以色列坦克和部队在武装直升飞机的支持下抵达了加沙城市市郊，切断了巴勒斯坦领土上最大的城市与加沙的剩余部分的联系。

An R/C helicopter is a heavier-than-air model aircraft that derives all of its lift and horizontal propulsion from a power driven rotor system rotating about a nominally vertical axis.

一个 R /C遥控直升飞机是一种重於空气的模型飞机可以被垂直上升下降、水平移动的旋翼系统旋转於一个名义上为轴之上。

Another argument for delivering wildland firefighters by parachute is that the fixed-wing aircraft that carry smokejumpers are cheaper to operate over long distances carry more personnel and equipment and have higher top speeds than the helicopters often used for other fire deployments.

另外一个赞成关于使用跳伞输送林野消防员的论证就是——固定翼飞机远距离飞行运送空降消防员，比常常用来输送其他种类的消防员的直升飞机美国留学费用更低、速度更快，而且可以携带更多的人员和装备

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。