| 1. | Improving on automatic device for rotary fan
11型局部通风机自动切换监控器的研制 |
| 2. | Auto shift to tweezers or soldering iron function
自动切换电热镊子及烙铁双功能。 |
| 3. | Development of auto - shifting device of auxiliary fan
矿用局部通风机自动切换装置的研制 |
| 4. | Practice in modification of coking wash oil cooling system
双电源自动切换在线监测控制系统 |
| 5. | The problem in contactor of atse
接触器式双电源自动切换装置存在的问题 |
| 6. | Automatic switching of output polarity
输出极性自动切换功能 |
| 7. | Automatic switching technology of power and its development orientation
电源自动切换技术及其发展方向 |
| 8. | Application of double power resources automatic transforming switch equipment
双电源自动切换装置的应用 |
| 9. | Trainer for trouble shooting of pump s automatic switching system
泵浦自动切换系统故障诊断与排除训练器 |
| 10. | Double switching power supply , be capable of automatic power switching
双开关电源，具备电源自动切换功能 |
