单词 | box key |
释义 | > as lemmasbox key box key n. (a) a key used to lock or unlock a box; (b) a tool with a hollow polygonal end that fits over and may completely cover the nut, bolt, etc., to be turned; = box spanner n. ΘΚΠ society > occupation and work > equipment > screwdrivers, wrenches, spanners > [noun] > spanner or wrench > box-spanner box spanner1849 box key1874 box wrench1880 1803 Morning Chron. 10 Nov. In digging round it he found the blade of a case knife, a box key, and the ring of a lantern. 1874 E. H. Knight Amer. Mech. Dict. I. 351/2 Box-key, an upright key, used for turning the nuts of large bolts, or where the common spanner cannot be applied. 1964 Commerc. Motor 23 Oct. 43/3 Quite often a junior or semi-skilled fitter will apply a box key and bar to U-bolt nuts. 2009 T. Kletz What went Wrong? (ed. 5) xxiv. 384 He or she then..locked the door key back in the box, and kept the box key. < as lemmas |
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