飞行

Aircraft is a combined research product of every high technology. It needs a very powerful engine to drive it to fly at high speed, a highly reliable fuselage to stand the action of variable stress, an advanced navigation control system to control the flying direction and posture of the flight, and a comfortable cabin environment.

航空飞行器是各高新技术研究成果的集成，要提供很强动力并保持快速飞行速度的发动机、能承受反复交变应力的可靠性很强的飞行壳体、可控制飞行方向和位姿的先进导航系统和操纵系统、舒适的人机环境空间等。

One of the most available ways to solve the problem is "free flight" that the pilots may choose the air route and flight speed suitable for them.

解决这一问题的最有效方法之一就是"自由飞行"，即允许飞行员选择最合适自己的飞行航线和飞行速度。

Many large highspeed and long runout landslides could fly in the air at the short-range stage. It is necessary to consider the areodynamics effect and ground effect at the short-range stage of landslide where it starts to fly. However, it is difficult to solve the differential equation with analytical solutions.

许多大型高速远程滑坡在近程活动阶段呈现凌空飞行运动，其飞行过程必须考虑空气动力学效应和地面效应，但是直接求解高速滑体凌空飞行运动的偏微分方程是困难的。

Honey is a widely known natural food. Bees gathered the nectar in flowers and take it back, then process and condense it into this translucence, sticky and thick sweet liquid. It's a tough job to gather nectar. A bee can only get 20mg nectar per time. To get 1kg nectar, the worker bee need to fly 500,000-600,000 times and to produce 1kg honey, a worker bee needs to gather the nectar from 1500-1600 flowers. If a bee gathers nectar just in a place one kilometer away from its comb, then it needs to fly 3 kilometers to fulfill a honey bursa. And to produce 1kg honey, it needs to fly 360,000-450,000 kilometers, which equals to fly around the earth for 8.5-11 circles. So it's not exaggerated to say each drop of honey is a crystal of hard working.

蜂蜜是大家熟悉的天然食品，系蜜蜂采集植物花朵内的花蜜，带回巢内经酿制加工浓缩而成的半透明黏稠甜液，蜜蜂采花蜜工作非常辛苦，一只蜜蜂一次只能携品20毫克的花蜜，采集1公斤的花蜜，工蜂要飞行50-60万次，而生产1公克的蜂蜜，工蜂要采集约1500-1600朵花的花蜜，如果蜜蜂在离开蜂巢1公里的地方采集花蜜，每采满一个蜜囊，而要飞行3公里，制造1公斤的蜂蜜需飞行36-45万公里，等于绕地球8.5-11周，可见瓶中蜜滴滴皆辛苦。

A clear image of what might be an alien or ET in a space suit can be seen in one cave painting along with a classical flying saucer shaped UFO that appears to be either beaming something down or beaming something up, in what might be an ancient UFO abduction scenario. A force-field or trail of some sort is seen at the rear of the UFO.

一个清晰的影像可能是一个外星人或ET，著住太空装能在一洞穴画作中被看到，沿着有一只古典的飞碟形状的不明飞行物，它像在以光束射低或射高东西，可能是一幅古代的不明飞行物绑架景况，一力场或某种东西的曳被见在不明飞行物的后方。

A clear image of what might be an alien or ET in a space suit can be seen in one cave painting along with a classical flying saucer shaped UFO that appears to be either beaming something down or beaming something up, in what might be an ancient UFO abduction scenario.

一个清晰的影像可能是一个外星人或ET，著住太空装能在一洞穴画作中被看到，沿着有一只古典的飞碟形状的不明飞行物，它像在以光束射低或射高东西，可能是一幅古代的不明飞行物绑架景况，一力场或某种东西的曳被见在不明飞行物的后方。

G- F A clear image of what might be an alien or ET in a space suit can be seen in one cave painting along with a classical flying saucer shaped UFO that appears to be either beaming something down or beaming something up, in what might be an ancient UFO abduction scenario.

H 一个清晰的影像可能是一个外星人或ET，著住太空装能在一洞穴画作中被看到，沿着有一只古典的飞碟形状的不明飞行物，它像在以光束射低或射高东西，可能是一幅古代的不明飞行物绑架景况，一力场或某种东西的曳被见在不明飞行物的后方。；

The entire flight process is the rocket's flight mechanics and celestial mechanics of the process, and sometimes is a typical rocket flight mechanics problems, and sometimes is a typical celestial mechanics problems.

整个飞行过程是火箭飞行力学与天体力学的过程，有时是典型的火箭飞行力学问题，有时是典型的天体力学问题。

After two months finished, change over to the American mould city Morrah that airport to accept the intermediate flying training □month intermediate flying training immediately to finish, change to the Locker airport, carried on pursuit airplane flying training □me were at that time the firm request study driving pursuit airplane _ month the pursuit airplane flying training had finished, continued to accept the aerial operation training, to late December, the aerial operation trained completely finished.

两个月后结束，随即转入美国土山市的莫拉那机场接受中级飞行训练。7月中级飞行训练结束，转到洛克机场，进行驱逐机飞行训练。(当时我是坚决要求学习驾驶驱逐机)，9月间驱逐机飞行训练结束了，继续接受空中战斗训练，到12月下旬，空中战斗训练全部结束。

Which began with the first hovering flight on 11 February 1954, the two XV-1s scored several "firsts", including the first successful conversion from helicopter takeoff to conventional wing-borne flight, and the first 200 mph flight by a rotorcraft.

在他们成功的飞行试验计划（图12 ），开始了第一次盘旋飞行54年2月11日，两个十五- 1 拿下几个&第一&，包括第一次成功的转换从直升机起飞常规右翼传飞行和第一二○○英里每小时飞行的旋翼机。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。