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				           		KDM is detectable matter-elements which have great importance to detect the goal matter-element in EDT.
						        										 	
						        					            	 关键可测物元是指在可拓检测过程中,对于检测目标物元有较重要作用的可测物元。
								    				            	 youdao 
- 
				           		KDM is detectable matter-elements which have great importance to detect the goal matter-element in EDT.
						        										 	
						        					            	 关键可测物元是指在可拓检测过程中,对于检测目标物元有较重要作用的可测物元。
								    				            	 youdao