查询词典 visual flight rules

Missions have included augmented takeoffs, supersonic flight, in-flight cycling of the weapons bay doors, air-to-air refueling, in-flight engine restarts, and cross-country flights to and from Eglin and Edwards Air Force Bases and Patuxent River Naval Air Station.

其中包括增强起飞、超音速飞行、飞行中武器舱门循环、空对空补给、飞行中发动机重启以及往返于从埃格林和爱德华兹空军基地和帕塔克森特河海军航空站的越野飞行（cross-country flight）。

First, the angular velocity function and maneuver load for certain maneuver flight (including hover, dive-hike and these two combined) are set up. The simulation results of the vibration of double-disk rotor system with cantilever supported on rigid bearings show that rotor would be apparently deformed under maneuver load. Second, the performance of oil force of SFD in maneuver flight is analyzed. The results show that in maneuver flight, the SFD with centering spring will become eccentric and its oil force will be time-related and offset-related.

首先，建立了水平盘旋、俯冲拉起及盘旋+俯冲拉起复合机动三种机动飞行条件下的机动角速度函数，并确定了对应机动飞行条件下的机动附加载荷（附加离心力和附加陀螺力矩），分析了带刚支的双盘悬臂转子系统在机动飞行条件下的振动特性，发现发动机转子在机动飞行时会发生明显变形；随后，分析了非定心挤压油膜阻尼器的油膜力特性，机动飞行时，油膜轴颈在机动附加载荷的作用下偏离外环中心，使得带定心弹支的挤压油膜阻尼器也变成了非定心挤压油膜阻尼器，其非定心挤压油膜力是瞬态时变的，并且与SFD油膜轴颈偏移量和进动形态有关；然后，在经典的Jeffcott转子系统中引入带定心弹支的挤压油膜阻尼器，分析了机动飞行时非线性转子系统的振动特性，发现挤压油膜阻尼器油膜力的非协调特性也反映到转子系统的振动响应中；之后，对机动飞行条件下带挤压油膜阻尼器的双盘悬臂转子系统的振动特性进行了分析，并重点分析、总结了俯冲拉起机动飞行时，系统结构参数和工作状态参数（转速比、机动飞行半径、机动角速度等）对该系统振动特性的影响。

Hegira or Hejira (Arabic hijrah,"flight"), specifically, flight in AD622 of Muhammad from Mecca to Yathrib, both in what is now Saudi Arabia; by extension, the term is applied to any similar flight or emigration.

hegira或hejira （阿拉伯语hijrah ，&飞行&），具体来说，在飞行ad622的穆罕默德从麦加到yathrib ，无论是在现在的沙乌地阿拉伯，通过扩建，该术语适用於任何类似的飞行或移民。

The aerospace indu***y is the complex of manufacturing concerns engaged in the production of flight vehicles, including unpowered gliders and sailplanes , lighter than air-craft, ground-effect machines, heavier than air craft of both fixed-wing and rotary-wing varieties, military missiles, space launch vehicles, and manned or unmanned spacecraft; propulsion systems and other thrusting devices; on board equipment essential to the design purpose of the flight vehicle; and ground-based support equipment needed for the operation and maintenance of the flight vehicle.

航天工业是一个综合制造行业，从事各种飞行器的生产，包括：各种无动力滑翔机，轻于空气的飞行器，地面效应机械设备，重于空气的各种固定和旋转机翼飞行器，军用导弹，太空发射器，载人或无人飞行器，推进系统或其他助推设备，对飞行器的设计至关重要的舱内设备，控制和维护飞行器的地面设备。

The aerospace industry is the complex of manufacturing concerns engaged in the production of flight vehicles, including unpowered gliders and sailplanes, lighter than air-craft, ground-effect machines, heavier than air craft of both fixed-wing and rotary-wing varieties, military missiles, space launch vehicles, and manned or unmanned spacecraft; propulsion systems and other thrusting devices; on board equipment essential to the design purpose of the flight vehicle; and ground-based support equipment needed for the operation and maintenance of the flight vehicle.

译文」航天工业是一个综合制造行业，从事各种飞行器的生产，包括：各种无动力滑翔机，轻于空气的飞行器，地面效应机械设备，重于空气的各种固定和旋转机翼飞行器，军用导弹，太空发射器，载人或无人飞行器，推进系统或其他助推设备，对飞行器的设计至关重要的舱内设备，控制和维护飞行器的地面设备。

The aerospace industry is the complex of manufacturing concerns engaged in the production of flight vehicles,including unpowered gliders and sailplanes,lighter than air-craft, ground-effect machines, heavier than air craft of both fixed-wing and rotary-wing varieties, military missiles, space launch vehicles, and manned or unmanned spacecraft; propulsion systems and other thrusting devices; on board equipment essential to the design purpose of the flight vehicle; and ground-based support equipment needed for the operation and maintenance of the flight vehicle.

航天工业是一个综合制造行业，从事各种飞行器的生产，包括：各种无动力滑翔机，轻于空气的飞行器，地面效应机械设备，重于空气的各种固定和旋转机翼飞行器，军用导弹，太空发射器，载人或无人飞行器，推进系统或其他助推设备，对飞行器的设计至关重要的舱内设备，控制和维护飞行器的地面设备。

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。

Got up slightly after 3am, guess some people were not even in bed yet… we flew the 6am flight, really hate to rush for flight at this kind of hour, but since we travel in a group and to cut costs, this is the cheapest flight available, so self-torturing for this time

凌晨三点多就起床，有些人搞不好都还没睡。。。搭乘早上六点的班机，好讨厌这种时间赶飞机，但因是一大夥人，为了省钱，只有这班机最便宜，所以就折磨自己一下。。。

Especially in the Flight simulation systems, the effects and indications are very important to flight and flight training.

尤其是在飞行仿真系统中，云层的显示效果对于飞行模拟和飞行训练来说是非常重要的。

"God seven" flying, will achieve a new breakthrough in China's manned space flight: It is China's manned space project "three-step" development strategy in the second step of the first major flight, for a breakthrough and master the extravehicular activity of China's key technologies, to further promote the cause of manned space flight to a higher level of development of great significance.

&神七&飞天，将实现我国载人航天的新突破：是我国载人航天工程&三步走&发展战略中第二步的首次重要飞行，对于我国突破和掌握出舱活动关键技术，进一步推动载人航天事业向更高水平发展具有重要意义。

He tendered his resignation to the Prime Minister.

他向首相递了辞呈。不适合

International economy and trade,Nanking 210044

国际经济与贸易，南京 210044