| 单词 | centre mark |
| 释义 | > as lemmascentre mark centre mark n. ΚΠ 1684 P. Ker Flosculum Poeticum 3 I bent my Soul, and shot my Wit, Thinking this Center-Mark to hit. ?1792 J. Barrow Descr. Cases Math. Drawing Instruments 25 Place the center-mark of the protractor upon the point A. 1895 J. Fehrenbatch Libr. Steam Engin. (1900) 735 Find the center between the two marks on the guide on that side and place a center mark there. 1933 P. Godfrey Back-stage i. 15 He examines these things for himself before returning to his position on the down-stage centre mark. < as lemmas |
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