| 单词 | t square |
| 释义 | > as lemmasT square T square n. a square of the form of a T or rather ⊦ (with a long stem), used by mechanics and draughtsmen for drawing lines parallel, or at right angles, to each other (see also tee n.1). ΘΠ society > occupation and work > equipment > equipment for marking out work > [noun] > squares squarea1300 trying-square1579 mitre square1676 mitre1678 centre square1683 box square?1710 square rule1726 T square1785 set square1854 try-square1877 society > communication > representation > a plastic or graphic representation > graphic representation > drawing plans or diagrams > [noun] > drawing instruments > for parallel lines T square1785 1701 T. Tuttell Descr. Math. Instruments in J. Moxon Math. made Easie (ed. 3) 19 Tee, a double Square in the form of a T.] 1785 J. Peacock in Philos. Trans. (Royal Soc.) 75 369 A common T square..will answer most purposes. 1861 S. Smiles Lives Engineers II. 76 His trace, his T square, his augers, his gouges, and his engraving tools. < as lemmas |
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