The feature and configuration are introduced for the new generation of electrification railway transformer protection. Its main protective principle and criterion are analyzed.
介绍一种新型电铁主变保护装置的特点及保护配置，对主要的保护原理及判据进行分析。
The feature and configuration are introduced for the new generation of electrification railway feeder line protection. Its main protective principle and criterion are analyzed.
介绍新一代电铁馈线保护装置的特点及保护配置，对主要的保护原理及判据进行分析。
The structure, property and working principle of nucleon turning tray steelyard were introduced, and its working feature as well as main factors of disturbing measuring accuracy were analyzed.
介绍了核子转盘秤的结构、性能及工作原理，分析了它的工作特征及干扰计量准确度的主要因素。
The new phase-comparison principle is the main feature of the new distance relay.
全新的比相原理是新型距离继电器的主要特色。
It was summarized that the principle of infrared radiation technology for HDPE pipes crosslinked with peroxide, feature of the pipes, the manufacturing process and the main applications.
概述了红外辐射技术的原理，介绍了红外辐射过氧化物交联高密度聚乙烯管材的特点、生产工艺及应用领域。
The article mainly introduces the feature, drive and control of main machine platform of long threads Dacron. The selection principle of inverter capacity in winding head multi-drive is emphasized.
本文主要介绍了涤纶长丝纺丝设备中主要机台的特征，传动及其控制，重点介绍了卷绕头多电机传动中变频器容量的选择原则。
This paper mainly introduces and describes the operation principle, component, main technical performance and feature, and the implement method of this device.
文中对该装置的工作原理、成、要技术性能、点以及实现方法作了概要描述。
According to the present status of the immunoassay of small molecular environmental pollutants, it is introduced the principle, feature and the main steps of research and development of immunoassay.
前言：针对小分子环境污染物免疫检测技术的现状，介绍了免疫检测技术原理、特点和研究开发步骤。
According to the present status of the immunoassay of small molecular environmental pollutants, it is introduced the principle, feature and the main steps of research and development of immunoassay.
前言：针对小分子环境污染物免疫检测技术的现状，介绍了免疫检测技术原理、特点和研究开发步骤。
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