Change of thunderbolt basic parameter can be monitored and formula lightning grounding device can be made up
The utility model provides a change of thunderbolt basic parameter can be monitored and formula lightning grounding device can be made up, which comprises a housin, insulation cover plate and inner core, the upper surface at the casing is installed in the insulation cover plate cooperation, the cavi...
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Format: | Patent |
Sprache: | chi ; eng |
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