定規 dìngguī established rule Definitions Defs Origin Strokes Stroke Words Sentences Sents 丁形定规 dīngxíngdìngguī T-square T-shaped technical drawing instrument used as a guide for drawing horizontal lines on a drafting board云形定规 yúnxíngdìngguī French curve a drafting tool used for drawing smooth curves of varying radii
