查询词典 erosion

In addition to nutritional factors, the productivity of many acid soils is affected by physical factors that include low water holding capacity and susceptibility to crusting, erosion and especially compaction.

除了养分因素外，许多酸性土壤的生产力受物理因素的影响，包括持水量低和对结壳、侵蚀及特别是压实敏感。

If you cut out Friction can cause erosion, exudate and crusting.

如果摩檫患部，可引起糜烂、渗液和结痂。

Bare soil is protected from the impact of rainfall which can cause surface soil crusting, compaction, and erosion.

塑料薄膜覆盖使裸土免受降雨引起的表土结壳、压实和侵蚀。

Forest and Jinseng compound ecological system can obtain relatively high economic benefit, but soil erosion, soil crusting and deterioration and species reduction are main eco-environmental problems of Jinseng exploitation in Changbai Mountain region.

文摘：林、复合生态系统能够获得较高的经济效益，而水土流失，土壤板结、化及物种的减少是长白山地区人参开发所产生的主要生态环境问题。

The break-off and cumulates of subducted slab would give rise to the upwelling of mantle material and then thermal -chemical erosion of lithospheric roots happened.

俯冲板片断离及在深部地幔中的堆积，必然引起地幔物质的对流，从而产生地幔羽，上升的地幔羽对岩石圈底部发生热侵蚀和化学侵蚀，并在薄弱地带上升喷出地表或侵入在地壳浅部，形成了广泛而强烈的岩浆作用。

MgO-C brick has a good erosion resistance but Al〓O〓-C brick is better. Corrosion mechanism for refractory without carbon is that FeO and oxides of molten slag take place chemical reaction with constituents of refractory and forming low fusing point compounds to be dissolved in molten slag. For those refractory containing graphite carbon is to be decarburized in advance and to form decarburizing layer and metamorphosis layer. The subsequent corrosion is decarburizing and taking chemical reaction to form low fusing point compounds and dissolved in molten slag at the same time.

铁浴中硅和钛的扩散是影响铁浴及熔渣与耐火材料作用的重要因素，耐火材料中添加的TiO〓和SiC受熔渣氧化和侵蚀，将被部分还原形成Si，Ti向铁浴中扩散，Si、Ti在铁浴中的扩散研究结果是： D〓=1.84×10〓exp（－5988.7/T） cm〓/S E〓=49766 J/mol D〓=7.76×10〓exp（－53225.5/T） cm〓/S E〓=442304 J/mol 铁浴式熔融还原熔体对粘土砖，高铝砖，镁砖的侵蚀速度很高，镁碳砖抗侵蚀能力比前几种耐火材料强，但不如铝碳砖；对不含碳耐火材料在熔体中的侵蚀是熔渣中FeO及其它氧化物与耐火材料组分的化学反应形成低熔点物熔蚀进入渣相，产生损毁。

Erosion phenomena also has useful applications such as cutting, sandblasting and degreasing before primer painting and surface treatments, among others.

侵蚀现象也有用的应用，如切割喷砂和除油前引油漆及表面处理等。

Contributing area is a common parameter for delineating channel cells and for evaluating the potential of soil erosion.

集流面积在集水区水文学的研究中，是一个相当有用的参数，它可以帮助研究者决定河道的位置，判断土壤冲蚀的潜势。

Soil erosion is defined as the course of destroying, denudating, moving and depositing of soil and other substances on the ground, under the actions of hydraulic forces, wind, gravity and freeze-thaw.

土壤侵蚀是指在水力、风力、重力、冻融以及其它外营力作用下土壤、土壤母质及其它地面组成物质如岩屑、松散岩层等，被破坏、剥蚀、运转、沉积的过程。

This paper analyzed SEM characteristics, surface roughness and micro-hardness of electroformed composite electrode materials, and studied their electrical erosion resistance .

通过复合电铸技术，在耐电蚀性强的铜主体中引入抗电蚀性能优异的石墨微粉，制备了铜-石墨复合电极材料，探讨了复合电沉积条件与石墨含量的关系，用扫描电子显微镜分析了复合铸层的形貌特点，测定了表面粗糙度和显微硬度，试验研究了复合电极材料的抗电蚀能力。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。