| 单词 | variation-chart | 
| 释义 | > as lemmasvariation-chart   variation-chart  n. ΘΚΠ society > travel > travel by water > vessel, ship, or boat > equipment of vessel > navigational aids > 			[noun]		 > chart > types of plain chart1614 plane chart1696 variation-chart1727 1727    N. Bailey Universal Etymol. Eng. Dict. II  				Variation Chart, a Chart design'd by Dr. Halley. 1748    B. Robins  & R. Walter Voy. round World by Anson Introd. sig. c4v  				A new variation-chart lately published. 1867    W. H. Smyth  & E. Belcher Sailor's Word-bk. 710  				The admiralty variation chart has been brought to great perfection. < as lemmas  | 
	
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