Research on the spatial distribution characteristics of arable land natural quality grade in Yunnan province Zhang Geng-Jie, Yu Jianxin, Zhang Chuan, Liu Shuxia, Zhang Jiansheng, Wang Dongjie 抽象的
Degradation of organic pollution in communal waste water by aerated lagoon system: Case of the waste water treatment plant of Oujda (Morocco) A.Rassam, A.Echchelh, A.Chaouch, M.Bourkhiss, B.Bourkhiss, A.El Malhi 抽象的
Measurement and evaluation on the culture industry operational efficiency in China—— empirical research based on the DEA&TOPSIS integrated model Qiu Shubing, Zhou Xiaohong 抽象的
Synthesis of chiral shiff base: Ferrocene-conjugates of amino acid esters Zhang Yu-Mei, Liu Peng, Zhang Hong-Li 抽象的