| 单词 | switchboard |
| 释义 | switchboard /swich"bawrd', -bohrd'/, n. Elect. 1. a structural unit on which are mounted switches and instruments necessary to complete telephone circuits manually. 2. Also called lightboard. a panel of switches, dimmers, etc., for controlling the lighting on a stage or in an auditorium. [1870-75, Amer.; SWITCH + BOARD] |
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