飞行

Presents the design of longitudinal control for ASTOVL lift-fan aircraft, a multi-variable, strong-coupling, complicated nonlinear system to make the system nonlinear offset and decouple, and the method used for linear system in designing the system to gain expectant flying qualities and the combination of aerodynamic control surfaces with thrust vectors to delay the control surfaces getting into saturation, and the minimum N-norm generalized inverse theorem of weighted generalized inverse adopted to apportion the moments commands, which make the control surfaces gain appropriate deflection and the simulation results to verify the dynamic inverse control laws designed really make the system nonlinear offset and decouple; when one command is given, only this output will response, and others do not response; when all commands are given together, the responses will be just the linear superpose of the response of each command, therefore the operation of the pilot will be simplified greatly.

摘 要： ASTOVL升力风扇飞机是多变量、强耦合、复杂的非线性系统，采用非线性动态逆理论设计控制律以实现系统的非线性对消及解耦，然后，采用线性系统的设计方法对系统进行设计，以使系统获得期望的飞行品质。同时，考虑到ASTOVL升力风扇飞机是由气动舵面和推力矢量融合作用的，为了延缓各舵面进入饱和的时间，采用加权广义逆中的极小N-范数广义逆定理分配力矩指令，从而使各舵面达到适当的偏转角。并将所设计的控制律进行了仿真，结果验证了所设计的动态逆控制律使系统实现了非线性对消和解耦，单个指令作用时，只有该项响应，其余不受影响；所有指令作用时，其结果就等于单个指令作用时的线性叠加，这样使驾驶员的操纵大大简化而易于控制，从而大大降低了飞行事故率。

The flight school, Aeroservice Aviation Center, is the same school where Jarrah, the suspect involved in the Sept.

这所名为「航空服务飞行中心」的飞行学校，就是九一一事件劫机嫌犯

This is used to determine how high to draw the white box when the user selects the building, and how high a Kirov Airship, Rocketeer, or another air unit will rise to clear the obstacle in their way.

它用於决定当选中该建筑时，出现的白色虚线框的高度，还有基洛夫空艇、火箭飞行兵或其他任何飞行单位打算飞过该建筑时需要升高的高度。

CAAC flight into nearly landing stage is flying high rates of accident, landing stage before 8 minutes and departure for 3 minutes, known as the highest rate of black 11 minutes.

民航飞行旳进近着陆阶段是飞行事故的高发阶段，着陆前的8分钟与起飞3分钟因事故率最高，被称为黑色的11分钟。

This is introduced in detail the takeoff and landing phase of flight operations, and then international flight safety foundation decrease in nearly landing accident research experts group to reduce the accidents in nearly landing stage of hair into nearly landing stage risk awareness, summarizes the checklist checklist five risk factors, on the basis of detailed analyses each element of each element, points out the various risk factors.

本文较为详细地推荐le起飞和降落阶段中的飞行操作，接着结合国际飞行安全基金会减少进近着陆事故研究专家工作组为减少进近着陆阶段的事故发制定的进近着陆阶段的风险意识检查单，概述了检查单中的五项风险要素，在此基础上详细分析了每项要素，指出每项要素中的各条风险因素。

The first few flights might aim to achieve space walk, and then spaceships operated by astronauts will try to engage, and finally dock the orbital module left from previous flights.

最初较少的飞行可能打算实现太空行走，然后宇航员操作太空船将会试着交会、对接轨道舱和从上述飞行离开。

Aimed at the angle legging defect existed in the acoustic location of high speed moving object by smart mine,the estimate of object flying track and coefficient recursion algorithm in flying module are developed in the paper.

文中针对智能雷弹对高速运动目标声定位存在一定角滞后的缺陷，开展了雷弹对目标的飞行轨迹的估计以及对飞行模型中的系数的递推算法，进而对单自由度和双自由度雷弹的拦截方位进行了预测。

McKittrick and some other flight surgeons sent a letter to Gen. Curtis LeMay, CO of the 3rd Air Division, Eighth Air Force, asking him to ease off before the crews broke from shell shock.

麦克凯特里克上尉与其他一些飞行医官合伙写了一封信，送交给第8航空队第3飞行师师长柯蒂斯·李梅将军，请求停止让因为弹震症而濒临崩溃的机组执行飞行。

Lindbergh taught his new wife to fly. Together, they made many long flights.

林德伯格教他的妻子飞行，他们一起作了许多长途的飞行。

This paper gives a theoretical analysis about the hit energy, flight time, delay time etc. of the electromagnetic parts of a line printer . The methods for measuring flight time and delay time under laboratory conditions are described and a comparison between measured and calculated values is made.

本文从理论上对行式打印机电磁铁部件的击打能量、飞行时间和滞后时间等问题，进行了分析计算；提出在实验室条件下测量飞行时间和滞后时间的方法；对它们的实测值和计算值作了比较。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷