| 1. | Mains frequency coreless , induction furnace for melting copper
工频无心感应熔铜炉 |
| 2. | Diesel generating sets of 50hz technical conditions for
工频柴油发电机组技术条件 |
| 3. | Verification regulation of 50hz single - phase phasometer
工频单相相位表检定规程 |
| 4. | Field testing of tbp power frequency discharge voltage
工频放电电压的现场测试 |
| 5. | Gasoline generating sets of 50hz technical conditions for
工频汽油发电机组技术条件 |
| 6. | Health standard for electric field in the work environment
作业场所工频电场卫生标准 |
| 7. | Measurement code for commercial frequency earth resistance
工频接地电阻测量 |
| 8. | Mains frequency coreless , induction furnace for melting aluminium
工频无心感应熔铝炉 |
| 9. | Power frequency ground resistance measurement for poles towers
杆塔工频接地电阻测量 |
| 10. | Power frequency resisting voltage relatively : 42 50
工频耐压相对地kv : 42 |
