您要查找的是不是：
- The combination of low-voltage incoming circuit breaker protection and automatic switching device and distribution transformer protection in the power supple system of petrochemical plant is very important, but it is easily neglicted. 石化企业内供电系统中有备自投装置的低压进线断路器保护与配电变保护的配合问题非常重要,但容易疏忽。
- Type D also owns objective magnification and indenter automatic switching devices. D型还拥有测量物镜与压头自动切换装置。
- For improving the power supply reliability, some automation devices, such as automatic recloser, automatic switching device of reserve sources, etc., are usually used in such systems. 为了提高电网对用户的供电可靠性，常采用一些自动装置，例如自动重合闸装置，备用电源自动投入装置等。
- standby power supply automatic switch device 备自投
- reserve power source automatic switch device 备用电源自动投入装置
- reverse line power supply automatic switching device 备自投
- Automatic dehydrating switch device. 脱水自动切换装置。
- BRIEF INTRODUCTION TO THE APPLICATION OF AUTOMATIC SWITCHING DEVICE OF STAND-BY POWER IN THE FACTORIES 浅谈备用电源自动投入装置在工厂中的应用
- Application of Voltage Automatic Switching Device in Energy Metering Device Retrofitting 电压自动切换装置在电能计量装置改造中的应用
- Mode-adaptive microprocessor-based automatic switching device for spare power source 模式自适应微机型备用电源自投装置
- Discussion on Benefit of Erecting Automatic Switching Device in Substation with Auxiliary Capacity 装设备用变自投装置效益的探讨
- Development of Automatic Switching Device Based on AVR Singlechip for Duplicate Power 基于AVR型单片机智能双电源开关的研制
- Automatic switching between bands. 自动切换波段.
- The Combination of Low-voltage Incoming Circuit Breaker Protection with Automatic Switching Device and Distribution Transformer Protection 有备自投装置的低压进线断路器保护与配电变保护的配合
- Design of a new backup power automatic switch device for improving the adaptability to protective relay 一种提高对保护动作适应性的微机备用电源自投装置设计方案
- Analysis of a Mistake Operation Fault of Spare Power Source Automatic Switch Device 一起备用电源自动投入装置误动事故分析
- A digital switching device in telecommunications for routing lines. 电讯中用于线路路由的数字交换装置。
- Automatic switching of the two shafts when the set length achieved. 当设定长度达成时;自动交换双轴.
- Development of An Automatic Switch Device forDouble Power of Single-Phase Source 单相双电源自动切换装置的研制
- automatic switching device 自动开关装置
