The feasibility and mechanism analysis of a penetrable pipe for soil base in the field used to irrigate and drain was disccued by mpns of the analyais of present underground irrigation systems.
英
美
释义
通过对现有地下灌溉系统的分析,论述了田间地下土基透水管灌溉、排水兼用的可行性及机理分析。
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