| 单词 | wall box |
| 释义 | wall box [`wȯl ´bäks] BUILDING CONSTRUCTION 1. A frame or box set into a wall to receive a beam or joist. Also known as beam box; wall frame. 2. A frame set into a wall to provide a sealed space for pipework to pass through. ELECTRICITY A metal box set into a wall to hold switches, receptacles, or similar electrical wiring components. |
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