劉振宇 ((地質學))

水田犁底層形成因素之試驗研究 = = Experimental study on the formation of plow sole in puddle rice field / by: 劉振宇 ((地質學)); 譚義績 (Language materials, printed)

耕犁與夯實對土層入滲影響之試驗研究 = = Experimental study onthe infiltration rate of soil layers by plowing andcompacting / by: 劉振宇 ((地質學)); 譚義績 (Language materials, printed)

臺灣地區水資源永續發展綜合執行計畫(1/4) / by: 劉振宇 ((地質學)); 柯海生; 謝弘哲 (Language materials, printed)