| 单词 | isobar | 
| 释义 | i·so·bar    (īsə-bär′)n. 1.  A line on a weather map connecting points of equal atmospheric pressure. Also called  isopiestic. 2.  Any of two or more kinds of atoms having the same atomic mass but different atomic numbers. [ISO- + Greek baros, weight; see  gwerə-1 in the Appendix of Indo-European roots.] i′so·baric (-bärĭk, -băr-) adj.  | 
	
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