"a supplying of water to land," 1610s, from Latin irrigationem (nominative irrigatio) "a watering," noun of action from past participle stem of irrigare (see irrigate).
权威例句
1. The rivers merge just north of a vital irrigation system.
就在一个重要的灌溉系统的北边,这些河流交汇在一起。
2. There the irrigation canal links up with the reservoir.
这条灌溉渠在那里与水库连接起来.
3. Irrigation is easy in the South because of the abundance of water.
南方多水,利于灌溉.
4. Irrigation is needed to make crops grow in dry regions.
干旱地区需要灌溉才能使作物生长.
5. How many man - days will be needed to construct this irrigation canal?