... 工地盘重：Field batch weight 工地排水管：field-drain pipe 工地控制：Field control ...
基于62个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
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.
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。
youdao
应用推荐
模块上移
模块下移
不移动