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第一期(;g第十六期)”秦箩三三竺?李………..;的;赵紫阳总埋考察甘肃中部干旱 报刊摘编……………………………·。—…….·(49) 山区……………………林 出 郭汾祥(2)水土保持名词解释—………·崔鸿强 史桂芳(sl)搞好水土保持是改变山区面貌的 农业科学技术基础知识讲座 根
The first period (; g sixteenth period) "Qinshu Sanzhu Zhu Li ......... ..;; Zhao Ziyang always buried in central Gansu drought newspaper excerpt ................................. ·. - ....... · (49) Mountain ........................ Lin Chu Guo Fenxiang (2) Soil and Water Conservation Glossary - ......... · Cui Hongqiang Shi Guifang (sl) Improving soil and water conservation is to change the face of mountainous areas of agricultural science and technology Knowledge lecture root