释义 |
flashover \ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷\ noun (-s) Usage: often attributive Etymology: flash (I) + over 1. : an electrical discharge or arc through the air to the ground from a high potential source or between two conducting portions of a machine or structure 2. : the sudden spread of flame over an area when it becomes heated to the flash point |