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The paper has studied the characteristic and reason for flood in cities in tidal river area, and then has summed up the assignments faced with and existent problems in the area. Considering the question of flood prevention of cities in terms of the characteristic of water system and difference drainage basin surface, the area is divided in to coteau and campagna.

根据下垫面的不同及水系特点,将研究区域分成山区和平原区,平原区再细分为水面、水田、旱地、城镇四类,分别采用不同的产汇流方法进行计算,再运用河网非恒定流方法计算河道断面洪水要素。

Through this research, draw the following conclusions:(1) Through analyzing the changes of structure and area of first-class and second-class landscape, foundings show that in the past ten years, the main character of landscape pattern changes is natural secondary forest land and dry land reduced but human effect forest land and waste-grassland expanded in research area.

通过本文的研究,得出以下几点结论:(1)通过对一级与二级景观面积和结构的变化特点分析发现:近十年来研究区景观格局变化是以天然次生林地和旱地的缩小及人为影响林地与荒草地的扩张为主要特征。

A laboratory method for evaluation of available nitrogen in soil.

几种测氮方法在反映旱地土壤供氮能力方面的效果。

However, many of the researches have concentrated on the areas with higher application of water and nutrients. There is limited information available on the uptakes, accumulations and translocation of nitrogen for the different varieties on dryland regions of China.

但应该看到,这些研究工作多集中在水肥条件供应充足的地区,对于旱地不同小麦品种对氮的吸收、转运,以及不同施氮水平下不同品种的氮素营养特性及诊断的研究尚待深入。

This paper discusses the varying laws of soil water and nutrients in thecase of different fertilizer conditions thereby to reveal the effects of water and fertilizerand its inter-reaction upon crop nutrient uptakes,moisture utilization and growth anddevelopment.

探讨了旱地农田不同水肥条件下土壤水分和养分的变化规律,揭示了水和肥及其相互作用对作物养分吸收、水分利用以及生长发育的影响。

Also, the relationship between these growth elements and yield was investigated. The results were as follows: Fertilization obviously increased the number of tillings, so increased the number of stems and ears of winter wheat per hectare as well.

研究了施肥对旱地冬小麦总茎数、叶面积系数及干物质积累和经济产量的影响,并探讨了这些生长因素与经济产量之间的关系。

Soil tillages in dry mountain lands in the east part of Qinghai Province chiefly con-centrate on spring and autumn.

青海东部山旱地土壤耕作主要集中在春秋两季。

The subsoiling experiments on fields of wheat and corn were carried out for seven years.

因此 ,在旱地保护性耕作技术体系中,深松被确定为一项少耕措施。

27 But when the fourteenth night was come, as we were driven up and down in Adria, about midnight the shipmen deemed that they drew near to some country

27:27 到了第十四天夜间,船在亚底亚海,飘来飘去,约到半夜,水手以为渐近旱地

But when the fourteenth night was come, as we were driven up and down in Adria, about midnight the shipmen deemed that they drew near to some country

27:27 到了第十四天夜间,船在亚得里亚海,飘来飘去,约到半夜,水手以为渐近旱地

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推荐网络例句

However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.

然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。

A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.

付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。