gravitational-flow irrigation

• 重力流灌溉

gravitational-flow irrigation的用法和样例：

例句

1. Gravity irrigation can increase fruit trees' production volume.
   利用自流灌溉可提高果树的产量。
2. The technologies, which include treadle pumps and drip irrigation systems, enable farmers to produce vegetable crops for consumption and sale.
   这项技术，包括踏板抽水和滴流灌溉系统，使得农户可以用于蔬菜灌溉，达到自行消费和出售的目的。