Spacecraft: Vehicle designed to operate, with or without a crew, in a controlled flight pattern above Earth's lower atmosphere.
航天器：设计在地球低层大气上按受控飞行路线运行的载人或不载人的飞行器。
The serious incident is officially classified in international aviation terms as "controlled flight into terrain only marginally avoided".
国际航空术语把这种严重事件正式归类为“控制中的飞机进入只能险险避开的地带”。
On a clear day, a pilot in controlled airspace can choose a VFR or IFR flight plan, and the FAA regulations were devised in a way which accommodates both VFR and IFR operations in the same airspace.
在晴天，在管制空域内的飞行员可以选择目视飞行规则或者仪表飞行规则的飞行计划，而且联邦航空局的条例是以这样一种方式设计的：在同一空域同时适用目视飞行规则和仪表飞行规则的操作。
Glider flight is a controlled descent; pilots gain altitude only if they catch rising air and ride it aloft.
用滑翔机飞行只是对下降的控制，真正的飞行员只有不断利用上升气流才能在空中越飞越高。
As the young bird matures, such controlled descent gradually gives way to powered flight.
一旦幼鸟成熟，类似这样的可控降落就会演变成为动力飞行。
Often the rudder is controlled in flight by one or more automatic yaw dampers, robot devices which, together with many others, handle corrections on modern airliners.
通常在飞行中方向舵都是有一个或多个自动偏航阻尼器控制的，在现代飞机上，自动装置和其他的装置一起处理偏航修正。
S, have the capacity for autonomous flight and navigation. A radio-controlled plane becomes an autonomous drone when it is given an autopilot, which Mr. Anderson calls "giving the plane a brain."
当无线遥控飞机装上安德森先生称做“飞机的脑子”的自动驾驶仪，无线遥控飞机就成了自主飞行的无人驾驶飞机。
Unlike traditional radio-controlled planes, unmanned aerial vehicles, or U.A.V. 's, have the capacity for autonomous flight and navigation.
不像传统的无线遥控飞机，无人驾驶航空器可以自主飞行和导航。
S, have the capacity for autonomous flight and navigation.A radio-controlled plane becomes an autonomous drone when it is given an autopilot, which Mr.Anderson calls "giving the plane a brain."
当无线遥控飞机装上安德森先生称做“飞机的脑子”的自动驾驶仪，无线遥控飞机就成了自主飞行的无人驾驶飞机。
This spring, the remotely controlled, Boeing-built aircraft, which features a "blended wing" body (wingspan: 21 feet), made its 80th flight as it completed the first phase of its testing.
今年春天，远程控制，波音公司制造的飞机，其特点是“混合翼”身体(翼展：21英尺)，作出了80航班，因为它完成了第一阶段的测试。
The purpose of the pneumatic system is to supply compressed air for a controlled temperature and pressure environment during all phases of flight and ground operation.
增压系统的作用是为飞行及地面所有阶段的温度和压力控制提供压缩空气。
The results show that the controlled helicopter can track the given trajectories stably and the proposed control scheme can solve the control problem of the helicopter vertical flight satisfactorily.
这说明基于反馈线性化的滑模控制方案较好地解决了该型直升机垂直飞行的控制问题。
It can be concluded that the accelerator mode MHD-controlled inlet can improve the inlet performance when the flight Mach number is lower than the design value.
研究结果表明，当飞行马赫数小于设计马赫数时加速器模式的磁控进气道可以提高进气道的性能。
The results show that the main causes are human error by crew and environment factors resulted in loss of control and controlled-flight-into-terrain with terrible fire causing severe casualty.
结果表明：事故的主要原因是人为因素和环境因素，事故结果主要为飞机失去控制和可控飞行撞地的结果，飞机撞地后起火往往造成机组人员和乘客大量伤亡；
In the Terminal Area energy Management, take advantage of the Energy-Range profile to achieve the flight control of Reusable Launch Vehicle and the energy is also controlled.
末端能量管理段是通过能量—航程的剖面对轨迹飞行器实施控制，并对能量加以控制。
In the Terminal Area energy Management, take advantage of the Energy-Range profile to achieve the flight control of Reusable Launch Vehicle and the energy is also controlled.
末端能量管理段是通过能量—航程的剖面对轨迹飞行器实施控制，并对能量加以控制。
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