The USAF radar reports then ceased Jan. 11, but then appeared for a day showing "signs of orbital distress".

Joint Development of EW Aircraft Programs by USAF and NAVY

美国海空军联合发展电子战飞机

Everyone who flies the F-22 at the Combined Test Force has been an operational USAF fighter pilot.

任何一个在综合测试大队飞F-22的人曾经都是一名美国空军的战斗机飞机员。

The other day I got a real USAF fighter pilot jacket at a second-hand shop.

有一天，我得到了一个二手店真正的美国空军战斗机飞行员夹克。

The USAF is a young Service when compared with the Army and Navy, but it has already established a great tradition.

与陆军和海军相比，美国空军是一支年轻的队伍，但它已经建立起了一种伟大的传统。

AFFTC, USAF s Flight Testing Centre at Edwards

全球最大的试飞基地&美国爱德华空军试飞中心

One-Stop Spare-Parts Supply Chain of USAF The Chain of Love

美空军的一站式零配件供应链

The USAF has begun to carry out the dual-range missile ( DRM) project.

美国空军最近已开始实施双距离空空导弹（DRM）计划。

The British RAF base where I was stationed as part of a contingent of USAF personnel

速度限制我作为美国空军人员分遣部队的一员驻扎在英国皇家空军某某地，

An overview on life and reliability requirements of military specification for airplane strength and rigidity of USAF and USN

评美空、海军飞机强度规范中的寿命和可靠性要求

USAF will continue to seek high-end, adaptable weaponry.

美国空军将继续寻求高端、适用的军备。

With the consideration of the web service access control requirement, this thesis describes a lightweight authorization service to solve service access control, Uniform Security Authorization Service ( USAS).

为了满足用户发布的服务具有访问控制的需求，本论文实现一个轻量级的访问控制服务&统一安全认证服务。

Tactical Decision Method for BVR Air Combat Based on Rough Set Theory and Bayesian Network

基于粗糙集理论与贝叶斯网络的超视距空战战术决策

A Tactical Decision Support System for BVR Air Combat Based on Neural Network

基于模糊神经网络的超视距空战战术决策研究

Design and Simulation of Multi targets BVR Attacking Fire Control System

多目标超视距攻击火控系统设计与仿真

In BVR attack, the compound guidance system with inertial guidance in the middle stage and active guidance in the terminal stage must be adopted.

进行超视距攻击，必须采用中段惯性制导和末段主动制导相结合的复合制导体制。

...the United States Air Force...

美国空军

His theory of the social contract had wide currency in America

他的社会契约论在美国广为认可。

I lived in America when I was little.

我小时候生活在美国。

Her grandfather had worked his passage to America.

她的祖父一路在船上打工支付船费来到美国。

After 20 years in America, I still feel my roots are in England.

尽管在美国生活了20年，我还是觉得我的根在英格兰。