| 单词 | radial curve | 
| 释义 | > as lemmasradial curve   radial curve  n. Geometry rare a plane curve traced by a point moving round a fixed point at a gradually increasing distance; a spiral; (also) a curve most readily expressed in terms of polar coordinates. ΚΠ 1706Radial Curve [see sense  A. 2b].							 1811    C. Hutton Course Math. 		(ed. 6)	 III. 189  				Curves that turn around a fixed point or centre, gradually receding from it, are called spiral or radial curves. 1931    Art Bull. 13 488  				The double fold already described..is repeated in simple concentric loops or radial curves. 2000    Jrnl. Soc. Archit. Historians 59 317/1  				The complexity of the exedra's arc, which Borromini has approximated with a single radial curve of 47 palms, exactly half the courtyard's width. < as lemmas | 
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