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- economic irrigation norm 经济灌溉定额
- The analysis of Wheat Economical Irrigation Norm under Sufficiency of Water Source 水源充足条件下的冬小麦经济灌溉定额分析
- Water saving irrigation norm model and its solutions 节水灌溉的灌溉定额建模与求解
- Analysis of computing irrigation norm of rice by Pengman method 应用彭曼法推求水稻灌溉定额的分析
- The separate furrow irrigation is a new way of economizing irrigation, which has been investigated and popularized, but there is no report in southern Ningxia hill region. 摘要隔沟灌溉技术是一项新型的节水灌溉技术，在国内外都已进行了较长时间的研究和推广，但在宁南山区尚没有推广应用的报道。
- the economic irrigation requirements compared to the full irrigation condition 经济灌溉
- He has been an unsung hero of the country's economic growth. 他是使这个国家经济成长的无名英雄。
- Experimental Research on the Rational Selection of Autumn Irrigation Norm in Hetao Irrigation District 河套灌区秋浇定额合理优选的试验研究
- Mother works economic advantages accrue. 母亲工作时经济收入增加了。
- They had led the country into economic disaster. 他们把国家带入了经济灾难中。
- Do you know the economic policy of this year? 你知道今年的经济政策吗？
- Economic depression often follows war. 经济不景气常因战争所致。
- The country is in a bad economic state. 这个国家的经济情况很差。
- The lecture bore down on economic causes. 那次演讲着重论述经济方面的原因。
- The book will open up to readers new vistas on economic thinking. 这本书将为读者展现经济思想的新远景。
- irrigation norm 灌溉定额
- They are faced with slippery economic problems. 他们面临棘手的经济问题。
- The economic situation is now different. 现在经济形势不同了。
- Economic recovery is supposedly getting underway. 经济据称正在恢复中。
- winter irrigation norm 冬灌定额
