Developing the fundamental principle and processing technology of the mineral fillers is described.
阐述了研制新型矿物填料的基本原理和加工技术。
Based on the analysis of principle of Universal Serial Bus, this paper discusses the developing technology of hardware and software about USB testing system.
在分析usb通用串行总线工作原理的基础上，讨论了USB测试系统中有关的硬件和软件开发技术。
The paper introduces the principle, effect of conversion frequency technology as well as the developing tendency of this industry, and concerning industrial strategies of China is followed.
介绍了电动机变频调速技术的原理、作用，变频调速技术产业的现状及发展趋势以及我国的对策。
This paper analyses the operation principle and quality features of slub yam device. It has solved the Problems of product developing, design technology and production management.
通过对细纱机竹节装置的工作原理、主要特点以及竹节纱特性的分析，解决了竹节纱产品开发、工艺设计以及生产管理方面的有关问题。
The principle of wind energy generation, the structure of wind energy generating system, and the developing trend of wind energy generation technology are described in brief.
简单阐述了风力发电原理、风力发电系统结构和风力发电技术的发展趋势。
In the 1960s, the use of science and technology workers semiconductor PN junction of the principle of developing a LED Lighting -emitting diodes.
上个世纪60年代，科技工作者利用半导体p N结发光的原理，研制成了LED发光二极管。
In the 1960s, the use of science and technology workers semiconductor PN junction of the principle of developing a LED Lighting -emitting diodes.
上个世纪60年代，科技工作者利用半导体p N结发光的原理，研制成了LED发光二极管。
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