1.
The reasons why reverse current protection is not necessary in rectifiers of direct current traction substation are described.
通过分析，阐述了直流牵引变电所内的整流器不必设置逆流保护的理由。
2.
Right Protection of On-line Consumer and Impelmentation of Reverse-Logistics;
在线消费者权益保护与逆向物流的实施
3.
Research of Protection and Start-up Strategy of VSC-HVDC under AC Network Fault of VSC-HVDC Inverter Side;
逆变侧交流电网故障时VSC-HVDC的保护和启动策略研究
4.
The Analysis of Harbin Electronic Products Reverse Logistics Model Based on Environmental Protection;
基于环境保护的哈尔滨电子产品逆向物流模式分析
5.
Study on Adaptive Current Instantaneous Trip Protection Scheme for Distribution Network with Inverter Interfaced DG
含逆变型分布式电源配电网自适应电流速断保护
6.
A Political Study of "Protection and Inverse Protection" in Rural Areas
乡村政治研究中的“保护—逆保护”
7.
Kinetic Studies on the Protection of Enzyme Activity by Substrate During Irreversible Modification
酶活性不可逆改变的底物保护动力学
8.
Research on Digital Copyright Protection Based on Traitor Tracing;
基于叛逆者追踪的数字版权保护研究
9.
Study of Protection Circuits for SPWM Inverter in Overvoltage;
SPWM逆变器过压保护电路的研究
10.
Analysing and controlling of CO_2 gas-shielded welding inverter
逆变CO_2气体保护焊机动特性及控制
11.
current-limiting overcurrent protective device
限流过电流保护装置
12.
combined over-current and reverse power protection
过电流和逆功率联合保?装置
13.
Application of Auto-adapted Current Protection for Power Distribution Network
自适应电流保护在配网保护中的应用
14.
residual current operated protective device
剩余电流动作保护器
15.
AC gas metal-arc welding process
交流熔化极气保护焊
16.
forest cover and watershed protection;
森林覆盖和流域保护；
17.
current actuated leakage protector
电流起动型漏电保护器
18.
Drive and Protective Circuits Design for Wave Controlled CO_2 Welding Inverter;
波控逆变CO_2焊接电源驱动及保护系统设计研究