| 单词 | semi-arc | 
| 释义 | > as lemmassemi-arc   semi-arc  n.  Brit.  , U.S.  , ΚΠ 1794    Attwood in  Philos. Trans. 		(Royal Soc.)	 84 151  				The balance commencing its vibration at the extremity of the arc B, after having passed the semiarc BO with an accelerated motion. 1858    Huxley in  Proc. Royal Soc. 		(1859)	 9 428  				Each distal portion of the hæmal semi-arc. < as lemmas  | 
	
| 随便看 | 
	
  | 
	
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。