关键

To our knowledge,the research on configuration design of high altitude airship is just beginning.

介绍了有关高空飞艇的概念和关键技术，指出自适应定点控制是高空飞艇发展中的核心关键技术。

A three row template may be designed for function key combinations with either an alternate key row or control key row for the third row selection.

三年连续模板可设计为功能键的组合，无论是候补的关键行或控制的关键，为连续第三排的选择。

Most of present airborne platforms are analogic control system, digital control system can improve the system general performance, digital control is the development direction of platform systems, digital control has especial techonoly, this paper focus on researching the key technologies of digital control of airborne electro-optical stable platform.

现有的机载平台大多采用模拟控制，数字控制系统能提高系统综合性能，便于系统调试，采用数字控制方式是平台系统的必然发展方向，系统辨识、控制器设计和多采样率问题的研究是数字控制系统研究的关键问题，有关机载光电稳定平台数字控制的这些关键技术研究是本文的目的。

And then, the exploitation methods and the key techniques of USIS, including data base design, main surface realization, MAPGIS secondary development, OpenGL 3D mapping techniques and digital mapping and intellective analytical technology, are discussed.

介绍了建立地下空间信息系统的目的和意义，论述了USIS的开发方法及其关键技术，包括：数据库技术、界面实现技术、MAPGIS二次开发技术、OpenGL三维图形开发技术、数字制图与智能分析技术等，并结合东深供水改造工程地下空间信息系统进行了开发方法和关键技术的应用研究，最后，对USIS的发展趋势作了较深入的分析，指出了今后研究的几个主要方向。

For 3D model technique in anthropometry, I analyze the influence for the measurement precision when measuring in different data phase and then present the definitions and measurement results of 21 important isosurfaces'positions and 35 important dimensions on human body.

在人体测量方面，对在不同数据阶段进行人体尺寸测量的准确度进行了分析，给出了人体二十一个关键截面位置及三十五个关键尺寸的定义和测量结果。

The orbit and the radiation environment of the robot are similar to ones of the ARGOS satellite, and the system is required to have high reliability.

本文在研究了SIHFT的两项关键技术—复制签名检错技术和软件签名控制流检错技术的基础上，针对小型智能飞行机器人系统的硬件平台，对软件检错技术的关键问题进行了分析并给出了解决问题的算法，提出了适于小型智能飞行机器人硬件平台的软件检错技术方案。

Press arrow up or key 2 and arrow down or key 8 to move between commands.

新闻箭头或关键2和箭头或关键8间移动命令。

Micro-glass bead, which is the key factor in this technique, is of utmost importance in its success.

玻璃微珠作为其中的关键因素，对该技术的成败有着关键作用。

In this article,the synthesis method of Phenanthraquinone is discussed and five main methods are compared,such as the method of using biphenyl and derivative of diphenylethane and the method of Diels-Alder and rearrangement as well as the direct oxidation.

本文对菲醌的合成方法进行了综述并对其几种方法作了比较，其合成方法主要有以联苯及二苯乙烷衍生物为关键中间体的方法、以Diels-Alder及重排反应为关键步骤，以及直接氧化等五类合成方法。

For the broadness and complexity of scheme design itself, it's too difficult to develop a complete Computer-aided Scheme Design System presently.

本文在全面分析、综合了机械运动方案设计的发展历史与现状后，提出了建立机械运动方案自动化设计支持平台过程中的5个关键问题，并针对这些关键问题从设计理论、实现方法和应用等方面进行了系统、深入的研究。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。