| 单词 | rectangular cross ripple mark | 
| 释义 | rectangular cross ripple mark [rek`taŋ·gyǝ·lǝr ¦krȯs `rip·ǝl ´märk]  GEOLOGY An oscillation cross ripple mark consisting of two sets of ripples which intersect at right angles, enclosing a rectangular pit.  | 
	
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