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…
| 单词 | θ191083 | 
| 释义 | society > communication > representation > a plastic or graphic representation > graphic representation > drawing plans or diagrams > 			[noun]		 > drawing instruments > for parallel lines (1)		 T square1785 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… | 
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