ditch irrigation

英 美
  • 沟灌
  • ditch n.沟渠;壕沟vt.丢弃;坠入沟中;飞机(在海上)迫降vi.挖渠;飞机紧急降落
  • irrigation n.灌溉;[医]冲洗
    1. Principles outlined for furrow irrigation apply to related methods of irrigation.
      简述的沟灌原理也适用于相近的灌水方法。
    2. Extensive land leveling is often required because the topography must be smoother than for furrow irrigation.
      由于畦灌的地形必须比沟灌的平坦,因此,常常需要大面积平整土地。