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- On the condition of winter wheat-summer corn cropping system in Beijing, the nonlinear goals programming model was used to optimize the water and nitrogen management under various rainfall year types. 摘要本文应用了非线性目标规划模型,用线性化逼近法求解,对冬小麦-夏玉米种植制度下,不同降雨年型的水氮管理措施进行了优化。
- The rainfall averages 36 inches a year. 年降雨量平均为36英寸。
- The rainfall there averages 300 mm a year. 那儿的年降雨量平均每年为三百毫米。
- Our firm is likely to reap a big profit this year. 今年我们公司很可能获得巨额利润。
- Rainfall is about average for the time of year. 对一年中的这个时候来说,降雨量还算普通。
- The mean yearly rainfall is20 inches. 每年平均降雨量是二十英寸。
- This area has very low rainfall. 这个地区雨量稀少。
- The rainfall averages 800 mm a year. 每年降雨量平均为800毫米。
- The company declared a large dividend at the end of the year. 公司在年底宣布分发高额股息。
- Excessive rainfall had made the harvest impossible. 雨量过多,丰收已经不可能了。
- The complete equipment of the new hospital will take a year. 新医院的全部设备需要一年才能装备好。
- There was another rainfall early this morning. 今天清晨又下了一场雨。
- The grain crop has gone down this year. 今年的粮食作物产量下降了。
- New Year's Day is a day for family reunion. 元旦是一个亲属团聚的日子。
- I'm under contract to teach here for one year. 我按照聘约要在这里教一年书。
- The shop expect to make a small profit this year. 这家店铺期望今年能赚点钱。
- I hope to see you again sometime next year. 我希望明年某一时候再见到你。
- Characterized by heavy rainfall; rainy. 多雨的以雨量很大为特征的; 多雨的
- We have had the biggest wheat crop ever this year. 今年我们的小麦收获量是有史以来最好的。
- Last year there were many more births than deaths. 去年的出生人数大于死亡人数。