下蚀

岷江上游和中游几个河段的下蚀率对比研究

Comparison on the incision rate in the upper and middle reaches of Minjiang River

笔者利用河流阶地与阶地形成年龄间的线性关系研究了岷江中游段的河流下蚀率。

The linear relationship between river terrace and river incision was used to determine incision rate in the middle reaches of Minjiang River .

而砂体垂向叠置的程度与相对湖平面升降、河流的下蚀作用、分流河道的变迁、多物源的沉积交互及盆地沉降与沉积速率的匹配等密切相关。

While the degree of sand body vertical stacked closely related to the relative lake level fluctuation , erosion of the river , vicissitudes of distributary channel , multi-provenance sedimentary interaction , basin subside and sedimentation rate matching .

利用TM数据在多种环境因素干扰条件下填制蚀变岩方法

The method of mapping hydrothermally altered rocks under various environmental conditions using TM data

普通大气条件下的蚀斑试验

A Plaque Assay under Normal Atmosphere

在该条件下微蚀过程稳定可控。

The conclusion can be drawn that under these conditions the process of micro-etching is stable and controllable .

肝内或膈下感染蚀穿膈肌侵入胸膜腔或形成支气管瘘是本病的主要病理学基础。

Perforation of intrahepatic and subphrenic infection through the diaphragm was the basic pathologic feature of the said fistulae .

试验发现钼酸钠与磷酸氢二钠的复配效果较为突出，在不同温度下缓蚀率均达99%左右，且成本最低。

The results showed that the synergistic effect between sodium molybdate and sodium hydrogen phosphate is remarkably superior to others .

花岗岩蚀变带岩体是指原岩在晚期侵入的花岗岩热液作用下经蚀变后形成的岩体。

Granite altered rock refers to the original rock with in late invading granite hydrothermal action after the formation of the altered rock .

在微螺旋槽旋转所形成的微螺杆泵效应作用下，蚀除加工间隙内的产物，加工效率、加工精度和稳定性得到了极大的提高。

Products between electrodes are wiped off completely by micro-helix pump effects which formed during the turning of the helix grooves , thus greatly improving ECM efficiency , accuracy and stability .

比较了甲基苯三唑与苯三唑的缓蚀性能，不同pH值条件下的缓蚀效率、热稳定性和抗氯性能。

This article compares methyl benzotriazole with benzotriazole in terms of their performance of anticorrosion , anti-corrosion efficiency in different pH condition , thermal stability and chlorine resistance .

经典统计学方法分析表明，在小流域尺度下土壤可蚀性K值存在很强的空间变异性，其变异系数达39.94%。

Classical statistical analyses show significant spatial variability of soil erodibility K values at a scale of small watershed , the variance coefficient of which is 39.94 % .

TS-240在造硫酸亚铁膜条件下的缓蚀性能研究

Researches on the corrosion inhibitive performance of TS-240 under the condition of making ferrous sulfate membranes

通过动态模拟试验方法研究了AEC水处理方案在黄河水6倍浓缩倍数下的缓蚀阻垢效果。

Corrosion and scale inhibition efficiency of AEC water treatment program for the Yellow River water under conditions of 6 cycles of concentration has been studied by using the method of dynamic simulation test .

介绍了IMC-1新型咪唑啉缓蚀剂的复配测试结果及评价，用电化学法和失重法测试了在不同浓度、不同温度和不同腐蚀介质下的缓蚀效果。

A newly developed imidazoline inhibitor IMC-1 was introduced in this paper . The inhibition under different temperatures and concentrations was investigated by weight-loss and electrochemical methods .

研制了一种新型YWY有机膦缓蚀剂，应用重量法、电化学方法及扫描电镜等手段对合成的有机膦缓蚀剂YWY在苦咸水条件下的缓蚀性能及其缓蚀机理进行了研究。

A novel YWY-typed organic phosphorus corrosion inhibitor was synthesized and researched by weight corrosion value , potentiodynamic method and SEM under the condition of bitter salt water .

水蚀作用下土壤抗蚀能力的表征

Prescription of soil anti - erosion capability under water erosion

腐蚀速率随着温度的升高而增加，在同一浓度下，缓蚀率随着温度升高而降低。

Corrosion rate increased and inhibition efficiency deceased with increase in temperature at the same concentration .

那么考虑下稍微拔蚀并修剪，以保持它们呈线形而又挺直，同时不失饱满和男子气概。

Consider a little plucking and trimming to keep them inline and straight while keeping them full and masculine .

与电铸铜相比，Cu-ZrB2在中、精加工条件下耐电蚀性可以提高30%左右。

Compared with the copper coating , the electrical erosion resistance of Cu-ZrB_2 composite electrocoating can be improved by 30 % .

矿下存在大型蚀变带，构成成矿流体对流循环过程中的水-岩作用带；

There was a large-scale alteration belt under the ore body . The water-rock reaction belt was formed in the convection-circulation process of the mineralizing fluid ;

工程中通常采用强迫掺气减蚀措施，防止泄水建筑物在高速水流作用下发生空蚀破坏，但在保护过流面底板的同时，忽视了对其侧墙的保护。

To prevent cavitation damage of hydraulic structures with high speed flows , forced aeration device is commonly adopted as an economical and effective engineering technique .

大豆冠下平均溅蚀速率随冠层生长逐渐降低，其它三种作物冠下平均溅蚀速率则在作物生长过程中无规律波动。

The average detachment rate under soybean canopy decreased as canopy grew ; for other three crops , the average detachment rates under canopy changed irregularly during growing stages .

在模拟胺液再生塔塔顶介质条件下对缓蚀剂缓蚀性能进行了评价，经复配后的咪唑啉缓蚀剂在该环境中具有良好的缓蚀性能。

The inhibitor mixed by using imidazoline and another assistant with a certain ratio showed a good function in the simulated corrosion environment of the overhead of amine liquid regenerator .

关键是要解决高浓缩倍数下的缓蚀、阻垢和微生物抑制的问题，特别是系统出现泄漏时的平稳控制问题，从而保证生产装置水冷换热器的高效、长周期运行。

It is important to solve the problems of corrosion , fouling and microbe in higher concentration degree to ensure that cooling device is operated with higher efficiency and longer period .

不同覆盖条件下地表可蚀性组分粒度分布和粗糙度长度的差异是造成风蚀强度差异的主要原因。

The great differences of wind erosion intensities between various land cover types result from different characters of erodible fraction size distribution and aerodynamic roughness length of the land cover types .

研究了风暴潮对黄河水下三角洲蚀积演变的影响。

The effect levels were introduced with quantitative indicators and geomorphological dynamics theory . ( 2 ) The subaqueous delta evolution of erosion and deposition deduced by storm surge on the Yellow River was researched .

试验结果表明，在保证酸洗效果的前提下，缓蚀剂的添加量越低越好，严格控制其添加质量分数在0.3%~0.5%。

Testing result shows that on the basis of assuring acid pickling effect , adding quantity of corrosion buffer is lower , effect is better and its adding mass fraction is controlled strictly to 0.3 % ~ 0.5 % .

研究发现，林木具有缓冲高强度降雨对土壤的滴溅侵蚀和减少有效降雨的能力，使林下土壤溅蚀量减少了约20%，土壤流失量降低了43.20%。

The pine trees were found to be able to curtail the splash detachment of the soil and reduce the effective rainfall . The splash erosion under the forest was reduced by 20 % , the soil loss reduced by 43.20 % .

借助SEM-EDAX和XRD手段研究了溅渣护炉作业条件下MgO-C砖的蚀损。

The corrosion mechanism of MgO-C lining brick of BOF under slag splashing process has been investigated by means of SEM , EDAX and XRD .