| 释义 |
Wall box
| (Mach.) | See Wall frame, below. |
See also: Wall wall box
wall box[′wȯl ‚bäks] (building construction) A frame or box set into a wall to receive a beam or joist. Also known as beam box; wall frame. 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. wall box, beam box, wall frame1. A frame or box which is set into a brick, masonry, or stone wall to receive a timber beam or joist. 2. In electrical wiring, a metal box which is set in a wall for switches, receptacles, etc. |