| 单词 | self-levelling | 
| 释义 | > as lemmasself-levelling   self-levelling adj.  Brit.  , U.S.  ΚΠ 1851    Indiana State Sentinel 		(Indianapolis)	 29 May  				The ‘sawed track’..acts most completely as a self-leveling superstructure. 1927    Harper's Mag. Oct. (Insert) 660–1 		(advt.)	  				The Otis micro-drive or self-leveling elevator is the outgrowth of machines designed for use on minelaying ships. 2011    Trailfinder Spring 10/1  				Innovations including a rock climbing wall, 9 hole golf course,..and even self levelling pool tables. < as lemmas  | 
	
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