查询词典 erosion

The area of our cropland will decrease,and will harm the food security;The needed quantity of farming land by the year of 2020 is discussed in the article under the four fallow patterns :the seriously polluted faming land;the farming land with low output;the farming land of soil erosion and follow by crop rotation.

休耕会使耕地面积减少，对我国的粮食安全造成不利影响；文中阐述了在污染严重的耕地休耕、中低产田休耕、水土流失严重的耕地休耕以及采用轮作休耕4种不同模式下到2020年我国所需要的耕地保有量。

Based on the analysis of natural and human activity factors which affected soil quality, the technical methods to sustainable utilization of cultivated land resources including district improvement, rational distribution, preventing soil erosion, rational fertility fertilization, reforming the faming systems were proposed.

在人为因素中，不合理的垦荒种植，难以改变的小型四轮拖拉机表土翻耕方式，不科学的肥料使用、管理方式，以及人口增长和经济社会发展的负面影响，都促使耕地质量在演变中逐步形成退化。

This change may brought tremendous benefits to the economy of zoology:① the forest land renew as elements of Kai county landscape, the cover ratio of forest increase obviously to 66.29% from 22.55% now, gain double. At the same time, the scale and intension of the soil erosion will control efficiently with the disappearances of the steep slope which use for furrowing; and it don't exist converse succession, it also make the whole landscape ecosystem system enter into virtuous circle.

这种变化将产生巨大的生态经济效益：①有林地重新恢复为开县景观的基质，森林覆盖率显著增加，将由目前的22.55%增至66.29%，净增2倍，同时，陡坡耕地全部消失，水土流失规模和强度将得到有效控制，现有不少嵌块体的逆向演替将不复存在，使整个景观生态系统进入良胜发展。

The anti-erosion performance of NiWC35 spraying and fuzing coating is better than other spraying and fuzing coatings because of 35% cermet WC in it.

电弧喷涂LX88A金属陶瓷涂层由于在电弧喷涂过程中发生化学反应生成含有金属陶瓷硬质相Fe3B，因此具有优良的抗冲蚀性能。

On the basis of literature search on erosion of axial flow fan's blade, depending on the failure mechanisms, several kinds of coatings were prepared. NiWC35, Ni60, SNi46 and SNi67 spraying and fuzing coatings were prepared by spraying and fuzing. Cermet composite coating of LX88A was prepared by arc spraying. Cermet composite coatings of conventional WC/12Co and nanostructured WC/12Co were prepared by HVOF.

本文在综合国内外关于轴流式引风机叶片冲蚀领域的研究文献的基础上，以冲蚀机理为依据，采用火焰喷熔工艺制备了NiWC35、Ni60、SNi46和SNi67喷熔层，采用电弧喷涂工艺制备了LX88A金属陶瓷复合涂层，采用HVOF工艺制备出微米WC/12Co和纳米WC/12Co金属陶瓷复合涂层。

Analysing the worsened geneses of water and soil losses can onlyinvolve the fundamental question of erosion caused by human beings.

剖析水土流失加剧的成因，不能不涉及人为侵蚀这个根本问题。

Time has gentled the ancient Smokies ( they are among the oldest mountains on earth ), softening their outlines as erosion works its magic.

时光柔化了古老的大烟山（这些都是世界上最古老的山），经年累月的风化腐蚀，就像魔术一般无二，把层峦叠嶂的轮廓琢磨得圆润平滑。

The use of this technique allows glimpsing a quantitative correlation among material properties, fractal surface topography and erosion phenomena.

使用这种技术可使窥见定量相关材料的性能，形表面地形和侵蚀现象。

In the topographically-broken gullied and hilly region of the loess plateau, we analyse the relationship among the density of gully, the developmental stage of gully, geomorphic form and soil erosion intensity with aerial photograph, and get some better results.

中文摘要：在地形破碎的黄土丘陵地区，利用航空遥感图像分析沟谷密度、沟谷发育阶段、地貌形态及其与土壤侵蚀强度之间的相关性，收到了良好的效果。

Scaly slipping is a special gravitational erosion taking place in transitive zone from semiarid grass vegetation to desert in No.5 subregion of gullied and rolling loess region.

鳞片状滑移是发生在黄丘五副区半干旱草原植被向荒漠过渡地带的一种特殊的重力侵蚀现象。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。