| 释义 |
DictionarySeeWall boxbeam box
beam box[′bēm ‚bäks] (building construction) wall box 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. |