| 1. | Economical operation of pumped storage station online 抽水蓄能机组在线经济运行 |
| 2. | Economical operation for water injection system of oil field 油田注水系统经济运行 |
| 3. | Numerical solution on economical operation for pump station 泵站经济运行的数值解法 |
| 4. | Economical operation for artificial lift system 机械采油系统经济运行 |
| 5. | Economical operation of boilers for daily life 生活锅炉经济运行 |
| 6. | Economical operation of indutrial boilers 工业锅炉经济运行 |
| 7. | Economical operation of the fan system 通风机系统经济运行 |
| 8. | Economical operation of power systems 电力系统经济运行 |
| 9. | Economical operation of power systems 电力系统经济运行 |
| 10. | Research the economical operation for pump station based on computer controlling systems 基于微机监控系统的泵站经济运行 |