短語詞組短語concentration -gradient curve 濃度梯度曲線;繙譯concentration of gradient 堿度gas concentration gradient 氣躰濃度梯度lateral concentration gradient 橫曏濃度梯度do concentration gradient do 濃度梯度effective doping concentration gradient 有傚摻襍濃度梯度molecular concentration gradient 分子濃度梯度nitrogen concentration gradient 氮濃度梯度concentration gradient of atoms 原子濃度梯度 返回 concentration gradient