查询词典 weathering

This research has detail summed up the characteristics between aluminosilicate weathering and the weathering of carbonate rocks, and is pointed out the similar weathering processes for aluminosilicate and carbonate rocks at the second stage.

本研究工作系统地总结了碳酸盐岩和硅酸岩风化的特征异同，并且指出碳酸盐岩第二阶段的风化类似于硅酸岩的风化。

The paper has studied the strata distributive character and engineering geologic property of bed rock zone of weathering in cryptical coal field, based on large of data form testing and real-field materials, taking importance on the laws of overlying destruction and underground pressure behavior and the mechanism of decreasing protective coal columns while extracting proximity zone of weathering .

以大量实验数据和现场测试资料为依据，研究了隐伏煤田基岩风化带岩体的分布特点及工程地质特性，重点论述了邻近风化带开采的覆岩破坏和矿山压力显现规律以及缩小防护煤柱的机理，为类似矿井的资源回收与安全开采提供了依据。

Weathering performance of the fire-resistant and weathering construction steel WGJ510C2 was studied by using indoor cyclic corrosion test and atmospheric field exposure test.

对室内盐雾加速腐蚀循环试验和10个月大气暴露试验的耐火耐候建筑用钢试样进行电化学测试，研究了其耐蚀性能。

In Branch C area, the heavy REE enriched shale normalized patterns of DREE, resemble a characteristic of REE in the weathering profiles, meanwhile, the fractionation of REE during the weathering process and the complexation of the REE with organic matters, also contribute to the patterns.

3支流C区溶解态稀土元素的页岩标准化分布模式为重稀土富集型，主要继承了风化壳中稀土元素的分布特征，同时风化过程中轻重稀土元素之间的分异、水体中稀土元素与草酸形成的有机络合也起到一定的作用。

Stone weathering is one of the important contents of geomorphology, but the study of its mechanism can be also applied to the weathering of building materials and their resistance to the environmental damage.

岩石风化是地貌学研究的重要内容，但对其机制的研究也可应用于建筑物风化及其抗蚀性的领域。

The chemical weathering index, K/Na ratio, eluvial coefficientand A-CN-K diagram , can availably indicate the evolution of pedogenic environment. The A-CN-K and CIA-K/Na diagram showed that the Holocene paleosol was in the primary stage of weathering, which K-feldspar went through weak weathering and K was less leached with much leach of Ca and Na. The intensity of weathering went stronger gradually from west to east in the Weihe Valley.

对化学风化指数、K/Na比值、残积系数等化学综合参数的研究结果显示，各项地球化学参数可有效指示成壤环境与成壤强度；从A-CN-K风化趋势图和CIA-K/Na比较图中可知，渭河流域三个剖面风化程度最高的全新世古土壤基本处于同一风化阶段，即脱Ca、Na，尚未到达脱K的阶段，还是风化较弱的初级阶段，但三者的风化程度是存在差异的，风化程度XJN剖面最低，JYC-N剖面最高，ETC剖面介于其中，说明渭河流域自西北向东南风化程度逐渐增强。

The analysis of weathering crust characteristic of lower Permian Kalagang group in Malang sag, Santanghu basin suggests that the paleo-weathered crust includes weathering clay ground, strong weathering rubble layer, weak, weathering block-stone layer and unweathered rock layer in vertical and was distributed under the unconformity interface and presented in planar manner horizontally.

对三塘湖盆地马朗凹陷下二叠统卡拉岗组风化壳特征的分析，认为古风化壳纵向上分为风化粘土层、强风化碎石层、弱风化块石层以及未风化岩石层等，平面上呈面状分布于不整合界面之下，剖析该区古风化壳成藏地质条件和构造演化，探讨了可能发育油气藏类型及与风化壳的关系，并指出了该区下一步下二叠统卡拉岗组有利的勘探目标是在P2t剥蚀线与P1k剥蚀线之间范围内，其次为卡拉岗组剥蚀线以东地区。

Based on test conditions of these two acceleration weathering methods in NES M1041,possibility is discussed on Xenon Arc Lamp Acceleration Weathering Test Substituting Sunshine Carbon Arc Lamp Acceleration Weathering Test in vehicle'acceleration weathering tests.

因此，在研制相应部品时，必须模拟自然使用条件对其进行老化测评。为了能快速评估材料的抗老化性能，在进行高分子材料的老化试验中，采用了人工加速老化的方法。目前人们常用的人工加速老化试验有氙弧灯、荧光紫外灯、金属灯和碳弧灯老化等。

Recent developments in the research on the geology and geochemistry of the newly-discovered clayey breccias at the lop of the Xiaochaka Formation in the Juhuashan, Xiaochaka and Shishuihe areas, Qiangtang Basin, northern Tibet have disclosed that mineral compositions, textures and structures, occurrences and sectional architectures of the clayey breccias agree well with those of the paleo-weathering crust in these areas. Compared with the bedrocks, the paleo-weathering crust is characterized by the leaching out of CaO and CO2, and relative enrichment of SiO2, Al2 O3, Fe2O3, K2O, Na2O, MnO and P2O5. The clayey weathered residues in the paleo-weathering crust are characterized by marked enrichment of REEs, much higher contents of LREEs than those of HREEs, markedly positive Ce anomalies and negative Eu anomalies, and a noticeable increase in other element contents besides Mo, Sn and U from the clayey weathered residues.

对最近在藏北羌塘盆地菊花山、肖茶卡、石水河等地区新发现的肖茶卡组顶部的粘土质角砾岩的地质、地球化学特征研究表明：其岩石矿物成分、结构构造、角砾层产状及剖面演化序列等与古风化壳的形成及其特征较为一致；相对于基岩，古风化壳的主量元素表现为CaO、CO2的淋失和SiO2、Al2O3、Fe2O3、K2O、Na2O、MnO、P2O5等不同程度的相对富集；古风化壳中的粘土质风化残积层的稀土元素具有明显的富集，表现为LREE含量远大于HREE的特征，存在明显的Ce的正异常以及Eu的负异常；微量元素除Mo、Sn和U外，粘土质风化残积层的其余元素含量均有明显的增加。

According to the analyses of the main periglacial processes and their landform types as well as the correlation with the rock cryo-genic weathering, it is concluded that the continental periglacial process which developed in the most areas on the Qinghai-Xizang Plateau, is dominated by the freeze-thaw, salt and insolation weathering which may exert same influence in the cryo-genic weathering assemblage.

本文总结分析了青藏高原的几种主要冰缘过程及其主要冰缘地貌类型与岩石冷生风化的关系，认为发育在青藏高原大部分地区的大陆型冰缘过程主要由冻融作用、辐射作用和盐分作用构成的冷生风化组合所控制，各个作用可能占有同等重要的地位。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。