It involved the construction of about 50,000 tube Wells in the fadama lands for small scale irrigation, as well as simplifying the drilling technology for the tube Wells.
项目的内容包括新建50000个机井，用于“发达玛”地带的小型灌溉，同时简化打井技术。
The author introduced the structure of infiltration irrigation system, the types of infiltration irrigation tube, as well as its use and maintenance methods in details.
详细介绍了渗灌系统的结构，渗灌管的种类以及使用维护方法。
应用推荐