In the early 1980s,thousands of farmers in Bangladesh began using treadle pumps to irrigate small plots of homestead gardens instead of lugging heavy buckets of water.

• 在1980年代初期，孟加拉国有几千农民开始用踩踏水泵灌溉自家菜园内的小块作物，而不用提一桶桶沉重的水。