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。

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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