短語詞組短語valence electron concentration 價(jià)電子濃度;電子濃度characteristic electron concentration 特征電子濃度excess -electron concentration 過賸電子濃度mean electron concentration 平均電子濃度free electron concentration detail 自由電子濃度free electron concentration 自由電子濃度linear electron concentration 線性電子濃度Crystalline electron concentration 晶躰態(tài)電子濃度 返回 electron concentration