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。
2
The author introduced the structure of infiltration irrigation system, the types of infiltration irrigationtube, as well as its use and maintenance methods in details.