Farmers usually get about 600 tons of tomatoes from one hectare of irrigated land. But by watering their land a new way they could get four times that many tomatoes. The method is called Underground Drip Irrigation.

• 每公顷水浇地上，农民大约可收获60吨番茄。但是，如果采用一种新的灌溉法，他们的收获可望增加4倍。这个新方法叫做"地下滴灌法"。