| 单词 | hollow quoin |
| 释义 | > as lemmashollow quoin hollow quoin n. a recess in the walls at each end of a canal lock, to receive the heel-post of the gate. ΚΠ 1838 F. W. Simms Public Wks. Great Brit. ii. 6 The joint between the heel-post and hollow quoin is made watertight by the gate being..worked backwards and forwards. < as lemmas |
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