| 单词 | residual material | 
| 释义 | residual material [rǝ`zij·ǝ·wǝl mǝ`tir·ē·ǝl]  GEOLOGY Unconsolidated or partly weathered parent material of a soil, presumed to have developed in place (by weathering) from the consolidated rock on which it lies.  | 
	
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