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单词 rentrant angle
释义

> as lemmas

rentrant angle
= re-entering adj. 1. Frequently in rentrant angle.
ΘΚΠ
the world > space > direction > [adjective] > bending or winding > turned back > doubled back on former direction
rentrant1702
re-entering1787
re-entrant1876
1702 Mil. Dict. at Tenaille The Single Tenaille, a Work, the Head whereof is form'd by two Faces, making one Angle Rentrant.
1791 ‘T. Newte’ Prospects & Observ. Tour 418 The land..forming..three salient, and two great rentrant, or returning angles.
1853 B. Jackson Treat. Mil. Surv. (ed. 4) 316 The most rentrant points of these bends are the best sites for bridges.
1890 Manufacturer & Builder Mar. 64/2 One of the means employed by cabinet-makers and carpenters, in making joints in r'entrant angles, is the art of coping.
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