查询词典 intersecting surface

First of all, this study will be multi-walled carbon nanotubes by chemical oxidation process purified so it can be modified to deal with than the purification of purity before the modified 5 wt%, more than 1.89 times the surface area to increase the surface potential decrease of about 10 ~ 20 mV and the surface functional base (-COOH and-OH) to increase 1.45 times, and then the control technology of electroless preparation parameters include: analysis of plating time, plating analysis of temperature, metal ions in solution than the (Fe2+/ Ni2+), bath pH and the added value of dispersion Agent and other research towards Fe-Ni particles to increase the iron content and Fe-Ni particles spread in the MWCNT upper fixed targets,the results found that when the parameters for the preparation of 50 ℃, pH10, do not add dispersant, metal ions than the solution (Fe2 +/ Ni2 +) 7, the highest iron content can be Fe = 40.55 at%(flat iron content 111.17 mg / g) of nanocomposites Fe-Ni/CNT, then for a series of the nature of its analysis, the final evaluation Fe-Ni/CNT nanocomposites were processed on the effectiveness of the application of mixed pollutants, the results showed that in 120 minutes at the same time when Adsorption of heavy metal ions lead nitrate 10 ppm, selenium heavy metal ion degradation of 1 ppm and orange azo dye AO7 50 ppm standard of effluents, and after a total Fe-Ni nano-particles to SEM / EDS analysis of more than 50% still remaining.

本研究首先将多壁奈米碳管以化学氧化法做纯化改质处理能使其纯度较纯化改质前提高5 wt％、比表面积提高1.89倍、表面电位下降约10~20 mV以及表面官能基提高1.45倍，再控制无电镀技术之制备参数包括：析镀时间、析镀温度，镀液中金属离子比(Fe2+/Ni2+)、镀液pH值及是否添加分散剂等，研究朝提高Fe-Ni粒子的含铁量与Fe-Ni粒子散布固定在MWCNT上等目标进行，研究结果发现当制备参数为50 ℃、pH10、不添加分散剂、镀液金属离子比(Fe2+/Ni2+)7时，可得到最高铁含量Fe = 40.55 at％(单位铁含量111.17 mg/g)之奈米复合材料Fe-Ni/CNT，接著对其作一系列性质分析，最后评估奈米复合材料Fe-Ni/CNT对共处理混合污染物之应用效益，结果显示其在120分钟时能够同时吸附重金属硝酸铅离子10 ppm、重金属硒酸根离子1 ppm及降解偶氮橘色染料AO7 50 ppm达放流水标准，且共处理后奈米Fe-Ni粒子以SEM/EDS分析仍剩余50 %以上。

This paper puts forward the triangle element method for calculating gravity anomaly of three-dimensional sphere-coronal model by using the divergence theorem. In this study, the volume integration was changed into surface integral, a series of triangles were used to fit the surface, and then the Green's formula was adopted to change surface integral into line integral. At the same time, a reasonable calculation program was given.

提出利用高斯公式将体积分变成包围该积分域的全表面积，应用一系列三角形拟合计算表面，然后通过格林公式把对每个三角形的面积分变成对三角形每边的线积分之和的三角元法来计算三度体球冠模型重力异常，同时给出了合理的计算方案。

A novel rendering technology based on surface reconstruction of points is presented,and through local surface analysis,surface parameter extraction and re sampling, fine rendering result at any viewing distance is generated.

提出了一种基于曲面点集重建的渲染技术，能够对输入点集作局部分析，提取曲面的参数，并通过重采样的方法，获得新的、密集的采样点，生成近景的高质量渲染结果。

The judgement of the results of electropolishing lies in the changes of the surface qualities, mainly weighted through two quantitative parameters: surface roughness and lustrousness, which are inconsistent in many cases and thus makes it hard to judge which one has a better surface.

判断电化学抛光效果的好坏一般以表面质量的变化为依据，主要是通过两个定量指标，即表面粗糙度和表面光泽度来衡量，但两个指标往往会出现不一致的趋势，给最终表面质量的评判带来了一定的难度。

This nevus shows itself as a macule , papule , or plaque and has a flat surface or a surface or a surface that is slightly elevated .

这个痣说明本身作为一个 macule ，丘疹或斑块，并有一个平面或表面或表面略有升高。

Based on the uniform magnetization model of the surface magnetic field distribution on multi pole drum for magnetic encoder , the surface magnetic field distribution on multi pole drum for magnetic encoder was studied with numerical analysis method, and the general expression of surface magnetic field distribution on multi pole drum was found.

基于磁编码器多极磁鼓表露场分布的均匀磁化理论模型，采用数值分析方法计算磁编码器多极磁鼓的表露场分布，得到了多极磁鼓的表露场分布的数值表达式。

According to the experiment results of degradation in field, degradation mechanism of the biodegradable mulch film can include four stages: the first, the material surface appeared deficiency while the surface area and interstice increased of material in the action of natural environment and microorganism; the second, along with the surface area and interstice of material increased and the gap strengthened, the chemical chain of the high polymer's principal chain broke as a result of the hydrolysis or the enzymatic effect in the action of hydration, causing the molecular weight and mechanics function descended; the third, the molecular of high polymer split the low polymer after its physical mechanical function descended, the material decomposed the fragments, the mass defect intensified; the fourth, the low polymer of fragments form in the natural environment, the microorganism, the biological enzyme became the smaller fragments, thus absorbed by the phagocytes, or further turn into CO2 and H2O due to hydrolysis.

根据田间降解试验结果推测，生物全降解地膜的降解机理可能包括四个阶段：第一，在自然环境、微生物作用下，材料表面出现缺陷，同时表面积增大、空隙增多；第二，随着材料表面积的增大、空隙的增多，吸水性增强，在自水合作用下，高聚物主链由于水解或酶解而使化学链断裂，导致分子量和力学性能下降；第三，在其物理机械性能下降后，高聚物分子链断裂为低聚物分子，材料裂解为碎片状，质量损失加剧；第四，碎片状低聚物在自然环境、微生物、生物酶作用下进一步水解变成尺寸更小的碎片，从而被吞噬细胞吸收，或进一步水解，生成CO2和H2O。

The surface activity dose joins the queen, since jointly there is the water loving base group in the surface activity dose and detest the water base group in molecular structure , the pole is as a result easy to wind notable lessening menstruum surface tension from inside transition to interface in the solution.

液体分子在和空气等接触的表面会形成一层特殊的结构，表现为表面张力或表面能。表面活性剂加入后，由于表面活性剂分子结构中合有亲水基团和憎水基团，因而在溶液中极易从内部跃迁到界面上显著降低溶剂的表面张力。

Distribution of biogenic silica content in surface sediments from deep water areas showed that it could not only reflect the paleoproductivity of siliceous micropaleontology in surface waters, but also indicate the strong or feeble upwelling. Thus, it was further confirmed that using biogenic silica content in sediments to trace upwelling and its change was effective and reliable. The analyzed result showed that radiolaria and poriferous specula have more contribution for biogenic opal, comparing with diatom in surface sediments from the northern studied area, probably owing to the diatom dissolved easily away and eaten by other organisms with little effort.

深水区表层沉积物中生物硅的含量分布表明，其不仅能反映出表层水体中硅质生物的古生产力水平，而且还能指示上升流的强弱，从而进一步证实了利用沉积物中生物硅含量来追踪上升流发育和变化的有效性与可信度研究结果还显示，在研究区域中北部表层沉积生物硅中放射虫和海绵骨针较硅藻占有更大的比重，这可能是由于硅藻易被溶解并易被其他生物体摄食的缘故。

］ In order to study the effect of machining processes on the surface condition of fastening holes drilled on 7075 aluminum alloy for aircraft assembly, the surface microphotograph and surface layers microstructure produced by the five kinds of drilling processes were observed and analyzed by means of SEM and optical microscope.

摘 要］为研究加工工艺对7075-T7351铝合金飞机装配紧固孔表面质量的影响，通过扫描电子显微镜和光学显微镜，分别对5种不同制孔工艺所产生的表面微观形貌和表层组织变化进行了观察和分析。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。