求翻译：旱作农业是在水资源严重短缺条件下，通过旱地农业结构和一系列旱作技术措施，不断提高地力和天然降水的有效利用率，靠充分利用天然降水实现农业稳产和平衡增产，使农林牧等综合开发的农业是什么意思？

Rainfed agriculture is under severe water shortage conditions , through a series of rainfed upland agricultural structure and technical measures to continuously improve the effective utilization of natural rainfall and soil fertility , by full use of natural precipitation to achieve stable and balan

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The drought makes the agriculture is under the water resources serious short condition, and a series of makes the technical measure dryly through the arid land agriculture structure, enhances the soil fertility and the natural precipitation effective use factor unceasingly, depends on the full use n

Dryland farming is in serious shortage of water resources under the condition of by dryland agricultural structure and a set of dry-farming techniques and continuously to improve productivity and the effective utilization rate of natural precipitation, and by making full use of natural precipitation

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