查询词典 aircraft

If the straight line linking the nose and tail is defined as the major axis of the aircraft, any aircraft boundary is symmetric about its major axis.

尽管不同用途、不同国度生产的飞机，其形状、大小千差万别，但如果将机首与机尾的中心直线方向定义为飞机的主轴方向，则任何一架飞机的边缘图像都是关于主轴对称的。

Characteristics of tailless aircraft wingtip stalling , including common and unique characteristics compared with other configurations, are analyzed with emphasis placed on the effect of wingtip stalling on flying qualities of tailless aircraft.

首先分析了无尾飞机翼尖失速的特点，包括与其他布局形式共有的和自身特有的特点，重点是翼尖失速对无尾飞机飞行品质的影响。

The bow-wave, the region of disturbed air around aircraft engines, could damage a tailplane if the engines were located near it,so tailplanes of rear-engined aircraft are mounted above the jets, often above the fins.

如果平尾装在接近弓形波，也就是飞机发动机周围产生干扰气流的区域，弓形波就会破坏平尾，因此发动机装在机身后部的飞机的平尾被安置在喷气机的上面，通常是在垂尾的上面。

If you look through this page you'll see many variants of the US insignia on the aircraft, depending on both the period of the war the aircraft was flying, and the theater of operations.

如果你看一下通过这一页，您会看到许多不同的美国标志的飞机，这取决于两个时期的战争中，飞机飞行，并战区。

The aircraft elevation position is determined by measuring differential carrier phase and time-of-arrival of the aircraft ATCRBS transponder reply.

通过测量飞机的ATCRBS应答器回答的微分载波相位和到达时间，确定飞机的高度位置。

During this period, the industry vacillated between considering a large, twin-engined aircraft with advanced radar and long-range missiles and a small, MiG-21-sized, single-engined aircraft with minimal electronics systems but with an emphasis on maximum performance and high maneuverability.

在这期间，工业界在考虑到底是选择一种装有先进雷达和远程空空导弹的大型双引擎战斗机还是选择一种小型的，大小类似米格21这样的最基本的电子设备系统但强调高性能和高度机动能力的单引擎战斗机上发生了争执。

Communications functions range from basic ultrahigh/very high frequency to single channel ground and airborne radio system and Have Quick. The aircraft also supports several datalinks for communications and situational awareness such as Link 16 and a specialized multi-array datalink for stealthy communications between aircraft.

通信系统功能有甚高频/超高频频段通信，单通道空地无线电系统以及"Have Quick"跳频通信。F-35还支持多种通信和战场感知数据链，例如16号链以及一条用于战机间保密通信的多阵列数据链。

It is believed that these aircraft come from undelivered aircraft that had been held in storage.

据信这三架飞机未装备过阿根廷部队，租借之前一直库存。

The aircraft landing sinking speed is one of the major parameters during undercarriage design and undercarriage strength inspection of the aircraft design typing flight test.

飞机着陆下沉速度是起落架设计和飞机设计定型试飞的起落架强度检查中的最主要的参数之一。

The aircraft acceleration affects the response significantly, especially the vertical component of aircraft acceleration.

过大的垂直加速度分量或过小的水平加速度分量都可能使原稳定的系统变得不稳定。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。