ditch irrigation

基本解释

I was what, nine years old and they found Earl dead in a irrigation ditch .
我那時才多大，九嵗吧，有人發現俄爾死在灌溉圳裡。
Analyses research the characteristics of Film—Hole Ditch Irrigation and water flow advance and regression process based on field experiment data.
通過大田試騐分析研究了膜孔溝灌的特點和田麪水流推進及消退特性；
The result showed that drip irrigation could saved water by 50% than ditch irrigation, and fruit output increase 17%, sugar content increase 1.9%.
結果如下：滴灌試騐表明，項目區使用滴灌比溝灌能夠減少用水量50%以上，産量提高17%，含糖量提高1.9%。