查询词典 aircraft

The motor will actively reduce cable tension peaks during the dynamic phase of the arrestment, and will accurately control both the hook load during arrestment and the final stopping position of the aircraft.

这种发动机将在阻拦的动态过程中有效降低阻拦索拉力的峰值，并对着舰钩挂上阻拦索的整个过程以及飞行最终停止的位置进行准确的控制。

When the shells coming down them, the German artillerymen dove into their bunkers and the 88 anti-aircraft fire ceased.

炮弹飞来时，德军炮兵钻进掩体，88口径高炮停止射击。

In other words, the assembly plant at this time there are five aircraft.

也就是说，此时总装厂房内还有5架飞机。

The ATF was held in order for the United States Air Force to receive new aircraft to replace their aging F-15 fleet.

该管理局举行，以便使美国空军接收新飞机，以取代其老化的F - 15机队。

For instance, he said, communications relays could be done from remotely piloted aircraft such as the Global Hawk, built by Northrop Grumman Corp, or Predator, made by privately held General Atomics.

佩顿举例说，通讯转接站就可以由遥控飞机来充当，这类飞机有诺斯罗普格鲁曼公司制造的"全球鹰"无人驾驶飞机和通用原子公司制造的"猎食者"无人侦察机。

General Atomics, San Diego, Calif., is being awarded a ＄573,000,000 ceiling priced, undefinitized contract action for the production of the Electromagnetic Aircraft Launch System CVN 78 Shipset.

位于加利福尼亚州圣地亚哥的General Atomics公司日前获得了价值5.73亿美元、关于生产CVN-78舰船电磁飞机发射系统的未定案合同。

Va aircraft. In 1920 the US Military Attache in Germany was given a demonstration of the sight.

Va 飞机上进行测试。1920年美国驻德国的陆军武官搞到一个瞄准镜的样本。

The foot of the aircraft hit the ball in the sky, it is said that the plane is to attack the white house, it seems that bush to thank him!

这脚球把天上的飞机打了下来，据说着飞机是去袭击白宫的，看来布什要感谢他了！

Compared to the previous generation fighters PAK FA possesses a number of unique features combining the functionality of both attack aircraft and fighter plane.

和以前的战斗机相比，PAK FA拥有了一些独一无二的、结合了战斗机和攻击机的特征。

The common method, that all strong-correlation terms of the model are eliminated, can bring the loss in the engineering application, so the new method is proposed that the identified model reserves some correlation. The augmented matrix A is constructed by the outputΔW and the matrix S. The"determinating order based on ratio of determinant"is brought out to screen the strong-correlation terms in the structure identification. The latent root estimation is improved in screening the eigenvalues and eigenvectors. Thus the estimation precision is improved greatly.The consistence check of guidance instrument error coefficients of flight test and ground test is the purpose of flight experiment. The causes of inconsistency of the two models are analyzed. The hypothesis test of linear regression model based on F statistics is proposed to check the consistence.Finally, the instability of error coefficients is probably caused by the change of the flight environments, therefore, the relation between the error coefficients and flight environment is analyzed. The approach is presented to identify SINS guidance instrument error models and compensate the error in the segmented sections corresponding to the change of vertical acceleration of aircraft.

在结构辨识中，常用的方法由于将模型中的强相关项全部剔除而给工程应用带来损失，因此，本文提出了新的有益思想，即在保留一定相关性的基础上进行辨识：将输出向量ΔW与环境函数矩阵S构成增广矩阵A，然后采用"比定阶行列式"来剔除相关向量的方法，这样既可以尽可能多地保留了对落点影响大的强相关参数，又可以对落点影响小的强相关参数给予剔除；在参数估计中，改进了特征根估计中特征根和特征向量的筛选方法，提出"近零"准则，从而大大提高了参数估计的精度；再者，鉴于天地模型"一致性"检验是飞行试验和SINS制导工具误差系数分离的主要目的，因此，本文又深入分析了造成天地模型不一致的原因，提出了采用基于F统计的线性回归模型假设检验方法来进行捷联制导工具误差模型的天地"一致性"检验；最后，鉴于飞行环境剧烈变化可能会对惯性仪表误差系数稳定性带来一定的影响，因此本文深入地分析了SINS制导工具误差系数与外界环境的关系，提出了基于过载变化大小的分段辨识和分段实时补偿的算法。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。