方法描述DXA骨密度仪测量技术原理和参数，阐述当前骨吸收测量技术的利与弊。
Methods The physical meaning of BMD and other relative parameter of DXA was described. The advantages and disadvantages of current absorptiometric techniques were presented.
本文报道了塑料闪烁体的技术光衰减长度的测量原理、方法和测量装置，并对影响此参数的因素进行了讨论；
This paper describes the principle, method and apparatus for measurement of technical light attenuation length of plastic scintillators. The factors that influences this parameter are discussed.
本文介绍了其性能特点、结构形式、技术参数、工作原理和电路图。
Its performance characteristic, structure, technical parameter, working principle and circuit diagram are introduced in this paper.
本文介绍了一种带刷的转鼓式清洗机的工作原理和特点、技术参数、主要机构及应用范围。
This paper introduced the working principles, characteristics, technical parameters, main structure and its applications of a drum cleaning machine with brushes.
介绍注射模冷却模拟技术的基本原理及在注射模冷却系统和工艺参数设计中的应用。
The basic principle of cooling simulation technology and its application in the injection mold cooling system and the design of the processing parameters are introduced.
介绍了机车行车安全装置的工作原理、使用方法以及各主要部件的功能和技术性能参数。
This paper introduces the working theory, using method, function and technical parameters of main parts of locomotive operating safety device.
本文介绍了浙江大学材料技术工程公司的脉冲气力输送系统的工作原理和主要设计参数。
The work principle and main designing parameters of the pulse pneumatic conveying system manufactured by Material Technology and Engineering Co.
介绍釜体抛光专用转罐机的基本工作原理、主要技术参数、主要设备构成、关键部件的选用、设计和制作。
The basic working principle, major technique parameters, major equipment structure, and selection, design, and fabrication of key parts of rotators special for autoclave body polish were presented.
介绍了新型一体化NID半干法脱硫系统的工艺原理、NID技术特点、系统组成、设计参数和运行情况。
This paper introduces the theory of one new NID semi-dry desulfurization system, NID technical characteristics, system components, design parameters and performance.
本文介绍了可钻桥塞的结构、工作原理和主要技术参数，并对主要机构的设计进行了讨论。
This paper introduces the structure of drillable bridging plug, it's operation principle and major technical parameters, and discusses the design of major mechanism.
介绍了液压联接式悬移支架的结构、主要技术参数、工作原理及各主要部件的设计特点和应用情况。
This paper introduces the construction of the support, major technical parameters, working principle, designing characters and use of fundamental the units.
文章介绍了该型时间继电器的主要技术参数、工作原理及接线和调试。
It is introduced in the paper the major technical parameters, operation principle, connection and test of this time delay relay.
简要叙述漏磁探伤的基本原理，介绍它的控制系统硬件结构，技术参数和具体功能。
The article describes the basic principle, control hardware configuration, technical parameter and function of flux leakage test.
介绍隧道通风控制与监测系统，包括基本技术条件、控制原理、监测参数和实施。
The-tunnel ventilation control and monitoring system is introduced. The contents include the basic technical requirement, control principle, monitoring parameters and implementation.
本文介绍了一种微小深孔的特殊加工技术——激光打孔的原理和工艺参数。
The principle of the laser boring which is a special processing technique and is technical parameters are introduced in this paper.
本文介绍利用该装置制取高温合金粉末的原理、过程和技术参数。
This paper introduces the principle of making high temperature alloy powder, its procedure and technical parameters in using this device.
介绍一种新型的电视内调焦定心仪的原理、结构、主要技术参数、仪器的特点和应用。
The principle, constitution, main technical parameters, instrument features and its application of a novel TV interior focusing and centering instrument are introduced in the paper.
本文介绍了加工管道坡口的机械——管道平头倒坡口机的设计原理、主要技术参数、特点和使用时的注意事项。
This article introduced the design principle, chief technical parameters, characteristics and points for attention of the chamfering machine for pipe end.
介绍了ZX型带式输送机转向装置的基本结构、工作原理、技术参数和适用范围。
This paper introduces the structure, the operation principle, technical parameters and the application scope of the ZX type turning device of belt conveyer.
介绍GZ M型钢轨辙叉打磨机的设计原理、功能特点和技术参数，并对其运用效益进行分析。
This is to introduce the design principle, function, feature and technical parameter of GZM frog grinder, and have an analysis on the benefits it may bring.
本文扼要介绍了自动投料机的工作原理、性能参数，重点介绍了电器控制技术和特点。
The paper briefly introducedd the work principle and performace parameter of automatic distributor for filling package and introduced mainly the technology and feature of the electronics control.
本文介绍了CRIMM型稀土永磁辊式强磁选机的结构、工作原理和技术参数。
This paper describes the structure, operation principles and technical parameters of CRIMM roll-type high. intensity magnetic separators with rare-earth permanent magnets.
主要介绍了苗圃地下害虫防治装置的结构和原理、技术参数及使用情况。
This paper introduced mainly the structure and principle of the control device for the underground pest in nurseries and its technical parameter as well as how to use it.
主要介绍了扩散反射式接近传感器的原理、性能、技术参数和调整方法。
The principle, features, technical specifications and the adjustment of diffusion reflective proximity transducer are introduced.
阐述卧式口铣削专用机床的设计构思，介绍该机床的工作原理、结构和主要技术参数。
It describes the design idea of special horizontal bevel milling machine. Working principle, structure and main technical data are presented.
介绍应用计算机辅助试验技术，设计实现的振动筛性能参数微机数据采集分析系统的原理和功能。
The paper describes the principle and function of the vibration screen characteristic parameter data acquisition analysis system, that designed by using the tecnologe of computer aided test(CAT).
本文简要地阐述了锤片粉碎机的工作原理和影响粉碎效率的因素，讨论了主要技术参数对粉碎机性能的影响。
The article briefly summarises working principles and various factors influencing grinding efficiency, discusses the most important technical datum influencing the performance of hammer mill.
本文阐述了扩频技术的优点、各种扩频系统（直接扩频、跳频和混合系统）的原理和主要参数，以及国际上的规定。
This paper expounds the advantage of spread spectrum, principle and important parameters of the system, and the international regulation.
本文阐述了扩频技术的优点、各种扩频系统（直接扩频、跳频和混合系统）的原理和主要参数，以及国际上的规定。
This paper expounds the advantage of spread spectrum, principle and important parameters of the system, and the international regulation.
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