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Theories and methods for the substitutive use of documentary information .

文献情报替代利用的理论与方法。

Development of substitutive fuels for internal combustion engines .

内燃机代用燃料的发展分析。

Key technique for lentinus edodes cultivation using substitutive stuff .

香菇代用料栽培关键技术。

Embankment agriculture at dongting lake plain and substitutive agricultural mode after changing farmland into lake .

洞庭湖区湖垸农业与退田还湖区替代农业模式研究。

Wetland utilization in the middle reach of yangtze river : developing ecological substitutive industry .

长江中游湿地生态替代产业开发模式及对策研究。