| 单词 | backup light |
| 释义 | backup lightWord forms: backup lights countable noun [oft pl] Backup lights are the white lights on the back of a vehicle that shine when the vehicle moves backward. [US]regional note: in BRIT, use reversing light The car had a single backup light above the rear license plate. backup light in Automotive Engineering (bækʌp laɪt) Word forms: (regular plural) backup lights noun (Automotive engineering: Vehicle components, Lighting and electrical/electronic systems) A backup light is a lamp used to provide light behind a vehicle, particularly when reversing. SIMILAR WORDS: backup lamp The color of the light from a backup light shall be white, in accordance with regulations. Backup lights must not be continuously lit when the vehicle is in forward motion. When the driver shifts the transmission into reverse, the contacts of the backup light switch are closed. |
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