常見(jiàn)例句Keywords Groundwater recharge Unsaturate zone Saturated zone; 回灌;包氣帶;潛水層;Study on unsaturate polyester resins filled with coupling agent-modified wollastonite 偶聯(lián)劑處理硅灰石填充不飽和聚酯樹(shù)脂的研究Keywords unsaturate alkane compound;nucleophilic reaction;triple bond;double bond;active intermediate; 不飽和烴化合物;親核加成反應(yīng);叁鍵;雙鍵;活性中間體;degree of unsatur ation 不飽和度 返回 unsaturate