这个农民挖了好几条沟以灌溉稻田。
The farmer dug several trenches to irrigate the rice fields.
同样，稻农只要时不时充分灌溉稻田就可以大幅减少用水量。
Similarly, rice farmers can sharply cut water consumption by flooding paddy fields only some of the time.
本文着重对节水灌溉稻田土壤大孔隙分布不确定性研究，为大孔隙流研究工作进一步开展奠定了基础。
This paper emphatically studied uncertainty distribution of macropore in paddy soil, laid the foundation of further research on macropore flow.
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