| 单词 | semi-base | 
| 释义 | > as lemmassemi-base   semi-base  n.  Brit.  , U.S.  , ΚΠ 1666    J. Collins Let. in  S. P. Rigaud  & S. J. Rigaud Corr. Sci. Men 17th Cent. 		(1841)	 		(modernized text)	 II. 461  				The semibase of a cylinder. 1796    C. Hutton Math. & Philos. Dict. at Cycloid  				The semi-circumf[erence] DGC = semi-base AC. < as lemmas  | 
	
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