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| Subject | Chinese | English |
| el. | 中性点接地的电力系统 | grounded neutral system |
| hydroel.st. | 供电范围电力系统地理接线图现状及远景 | Geographical connection of the power system in the power recipient area (current and future) |
| el. | 电力系统地理接线图 | geographical system connection diagram |
| el.mach. | 电力系统接地 | power system grounding |
| el.mach. | 电力系统接地 | power system earthing |