| 1. | Analysis of data storage for electrical secondary system
电力二次系统存储备份方案分析 |
| 2. | Creation and disappearance of limit cycles in quadratic system
0类二次系统极限环的产生与消失 |
| 3. | Uniqueness of limit cycle for qudratic system of type
类二次系统极限环的惟一性定理证明的改进 |
| 4. | A note on existence of limit cycles of type equation of quadratic differential systems
类二次系统极限环的惟一性 |
| 5. | On the uniqueness of the limit cycle of the quadraticsystem with a 2nd - order weak focus
二次系统二阶细焦点外围极限环的唯一性 |
| 6. | Sufficient and necessary conditions of existence of limit cycle for one kind quadratic system
一类二次系统极限环存在的充要条件 |
| 7. | The demand and applications of data backup technology in the secondary part of power system
数据备份技术在电力二次系统中的需求及应用 |
| 8. | Improvement and domestic production of caijiachong converter station secondary system design
蔡家冲换流站二次系统的设计改进措施和国产化 |
| 9. | Analysis on security and protection of secondary system for dispatching system in shanghai power grid
上海电网调度二次系统安全防护策略分析 |
| 10. | Railway fixed equipment . modular power supply for systems of signals equipement , telecommunication equipment and computer equipment . secondary system
铁路固定设备.信号设备通信设备和计算机设备用模块化电源.二次系统 |
