查询词典 erosion

This erosion, coupled with a seven-year drought that began in 19 31 , turned once fertile grasslands into a desertlike region known as the Dust Bowl.

这侵蚀，再加上7年的干旱， 19月31日开始，把肥沃的草原一旦进入desertlike区域称为沙尘暴。

The combination detection of three antibodies can improve the specificity for the diagnosis and is helpful to the early diagnosis of RA. The bone erosion is more severe in the patients with detectible two positive antibodies.

三种抗体联合检测可提高对RA诊断特异性及诊断率；两种以上抗体阳性RA患者，骨破坏更严重。

Detrital sedimentation is the direct record in basin for mountain uplift and erosion. The analysis of detrital minerals, including heavy minerals, is a key means for basin-mountain coupling studies.

碎屑沉积是山脉隆升和盆地沉积的直接记录，包括碎屑重矿物研究在内的碎屑沉积物的分析是开展盆山耦合研究的必要手段。

The present production crafts of potassium dihydrogen phosphate are always expensive, and usually cause heavy erosion.

目前，磷酸二氢钾的生产工艺较多，但普遍存在投资大、设备腐蚀严重等缺点。

Concrete dissoluble erosion is essential disease of concrete dam.

混凝土的溶出性侵蚀是混凝土坝的本质性病害。

The results show that, firstly, Stellera chamaejasme L, which rely on their developed axial root system in the 10～40cm soil layer to occupy the competitive priority of volume, length, surface area and so on, in the case of their adaptive faculty to poor surroundings resulting from fruit picking, trampling and overgrazing as well as with the phenomenon of restrained growth among various plants, gradually become the dominant plant in the herbaceous community; secondly, this kind of degraded grassland has not displayed any general characteristic of degradation such as surface exposure, accumulative quantity of vegetation reduced, water loss, soil erosion and so on, therefor, it should be dealt with distinguishingly; thirdly, if"Stellera chamaejasme L Killer"and"Oxytropis ochrocephala Killer"invented by CAS are taken advantage of respectively in the bloom period of Stellera chamaejasme L and at the beginning of florescence of Oxytropis ochrocephala bunge by ultra-low volume spray of 1. 05L/hm〓 and 1. 35～165L/hm〓 dosage separately, the death rates of poisonous herbs may achieve above 95% and 92% correspondently; fourthly, this technology with the characteristics of high work efficiency, exclusive selectivity and convenient operation, is safe to non-target plants and other animals, and has no toxic or side-effect to environment; furthermore, an execution of"Stellera chamaejasme L Killer"spray and a two-year grazing prohibition can be effectively applied on degraded grasslands of"Weed and Poisonous plants Type".

结果表明：狼毒凭借发达的轴根系在10～40cm土层中形成的体积、长度、表面积等竞争优势，以及对采食、践踏、过度放牧所形成的不良环境的适应能力和异株克生现象的存在，逐步成为草群中的优势植物；毒杂草型退化草地没有表现出地表裸露、植物蓄积量减少、水土流失等一般性退化特征，对该类草地的治理应区别对待；应用中科院研制的'灭狼毒'和'灭棘豆'分别在狼毒盛花期和黄花棘豆初花期，以1.05L/hm〓、1.35～165L/hm〓的施用量超低容量喷雾，毒草的死亡率可达到95％、92％以上；该技术具有工效高、选择性专一、灭效高、操作简便，对非靶标植物和其它动物安全，对环境无毒副作用的特点；采用喷施'灭狼毒'+短期禁牧措施，可以有效治理毒杂草型退化草地。

This phenomenon not only causes soil secondary productivity clination, water and soil erosion inside oasis but also creates downfalling or death for a great lot of natural vegetables at middle reaches of a river, downstream and desert outer oasis. It have artificial oasis lose a natural barrier and have to face desert s affection .

这不仅引起绿洲内部土壤的次生盐渍化、水土流失等一系列问题，还造成了河流中、下游及绿洲外围大量天然植的衰败、死亡，使得人工绿洲区直接面临荒漠侵袭。

At last, based on the theory of healthy ecology system, in order to achieve the duple objects maximizing output and minimizing runoff and wind erosion, the strategy of reconstructing should adjusting measures to local conditions and developing reasonably for optimizing the land use in the North Foot Region of Yinshan Mountain.

最后，根据以上的试验结果，结合当地实际，基于生态系统健康，提出为实现收益最大化和水土流失、风蚀沙化最小化的双重目标，应因地制宜适度开发的生态恢复策略，以优化阴山北麓土地的利用。

The toxicity of spent potliner is discussed in this paper according to the research on main constitutes,microstructure,tiny section components,ash content and hydrating reactivity of SPL. The result indicates that the toxicity of SPL mostly rests with its leaching toxicity,contaminates in SPL are mainly dissolving fluorides and cyanides,these contaminates mostly come from electrolyze which infiltrate into the potliner and cause erosion,contents of dissolving F— and CN— in SPL are far more than the permitted discharge in national standard. SPL, which seriously does harm to eco-environment is classified as hazardous solid waste and should be detoxified as soon as possible.

本文从废槽内衬的物相组成、微观形貌、微区成分、灰分、水化反应性五方面研究了废槽内衬的危害性，结果表明，废槽内衬的危害性主要在于其浸出毒性，毒害物质主要是可溶氟化物和氰化物，毒害物质主要来自于电解质对内衬的渗透、侵蚀，废槽内衬中可溶F—和CN—的浓度远远高于国家标准规定的允许排放量，因此废槽内衬被认定为固体危险废弃物，严重危害生态环境，必须进行无害化处理。

Now Electroosmotic Dewatering has been successfully applied in sludge dewatering . A lot of research on raising the rate of electroosmotic dewatering and electrode material erosion has been carried out .

电渗透脱水已经成功地应用于污泥脱水，并且在提高电渗透脱水速率和防止电极腐蚀方面已经有了较深入的研究。

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。