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| Chinese | English |
| 保护火花间隙 | protective spark gap |
| 操作冲击保护比 | protection ratio against switching impulses |
| 操作冲击保护水平 保护装置的 | switching impulse protective level of a surge protective device |
| 浪涌保护装置 | surge protective device |
| 雷电保护系统 | lightning protection system |
| 雷电冲击保护比 | protection ratio against lightning impulses |
| 雷电冲击保护水平 保护装置的 | lightning impulse protective level of a surge protective device |