旱作农业 （ dry farming ）是指在降水量偏少、有水分胁迫而无充分灌溉条件的半干旱和半湿润偏旱地区，主要依靠天然降水从事农业生产的雨养农业（rained f...
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... dry desert raw soil 干旱漠境粗质土 dry farming 旱地耕作 dry farmland cultral vegetation 旱地栽培植被 ...
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Dry farming techniques 旱作农业技术
dry farming techniques system 旱作农业技术体系
dry farming and Abandoned Farmland 旱作农田及弃耕地
dry farming agricultural areas 旱作农业区
dry-farming 旱作条件
dry farming soil 旱作土
dry farming land 旱作农田
dry-farming soil 旱作土壤
N a system of growing crops in arid or semiarid regions without artificial irrigation, by reducing evaporation and by special methods of tillage 旱作农业
Dry farming ,irrigation farming,and the cattle and sheep herding are the main cativities of the Great Plains of the American West.
旱地农业，灌溉农业和牛羊牧业是美国西部大平原地区的主要活动。
Dry farming, irrigation farming, and the cattle and sheep herding are the main activities of the Great Plains of the American West.
旱地农业，灌溉农业和牛羊牧业是美国西部大平原地区的主要活动。
Dry farming irrigation farming and the cattle and sheep herding are the main activities of the great plains of the american west.
旱地农业，灌溉农业和牛羊牧业是美国西部大平原地区的主要活动。
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