[名词解释] 灌溉水源（water sources for irrigation）
[名词解释] 节水灌溉（water-saving irrigation）
[名词解释] 农田水利（irrigation and drainage）
[名词解释] 水利计算（analysis of irrigation water resources）
[填空题] 英译中（Translate）：sprinkling irrigation（）
苗圃的灌溉形式主要有3种：________灌溉、________灌溉、移动喷灌。苗圃的灌溉形式主要有3种：________灌溉、________灌溉、移动喷灌。
[单选题]He may also need money to construct irrigation_______and improve his farm i
[单选题]He may also need money to construct irrigation_______and improve his farm i
[单选题]地面灌溉中，为了节水应采用（）灌溉？A .漫灌B .大畦灌溉C .小畦灌溉D .沟灌