| 单词 | sedimentation diameter | 
| 释义 | sedimentation diameter [´sed·ǝ·mǝn`tā·shǝn dī´am·ǝd·ǝr]  GEOLOGY The diameter of a sedimentary particle, determined from the measurement of a hypothetical sphere of the same gravity and settling velocity as those of a given sedimentary particle in the same fluid.  | 
	
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