A beam, plank, or piece of timber, esp. one of a number upon which something rests or is supported, or by which a thing is held in position.
单词 | θ103400 |
释义 | the world > space > relative position > support > [noun] > that which supports > supporting beam or plank of wood (4) skid1609 A beam, plank, or piece of timber, esp. one of a number upon which something rests or is supported, or by which a thing is held in position. needle1684 A beam or post of wood; (now) spec. a short horizontal beam at the top of a strut or shore, which is inserted into a wall to provide support, esp… head tree1747 Mining and Building. Originally: a horizontal supporting beam placed on top of one or more vertical props or posts. In later use also: a… sleeper1849 In general use: A horizontal beam, plank, etc., used to support any weighty body. |
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