查询词典 surface area
- 与 surface area 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Long time, blanket a surface area of fatvolume, the impurity of case-hardened and cannot be cleared in business card printing and membership card making absorption of moisture on the surface of the plate after expansion of its surface marks which are subsequently deformed.
来因3:由于操纵职员自身,不有能准时积压橡皮布暗地的杂量,工夫不暂了,橡皮布暗地积了厚厚一层杂量,其暗地强硬,无法积压肮脏,在制卡和会员卡制作历程洋汲取印版暗地的水分后爆发扩张,其暗地的笔迹随之变形。
-
First, from room temperature to 500oC, the shell structure is amorphous with crinkly and airtight character. The shell structure begins to change into γ-Al2O3 and α-Al2O3 at 900oC. The surface of shells shows nano-sized pores at 900oC from SEM and BET analyses. When heated to 1000oC and 1100oC, the shell forms stable α-Al2O3 structure with smooth surface. Cracks often occur at the triple grain junctions. The specific surface area and the total pore volume of the hollow spheres increase with the calcination temperature.
首先,将锻烧温度由室温提升至500℃时,球壳属非晶相皱褶状致密结构;在900℃时开始有γ-Al2O3相及些许的α-Al2O3相出现,由SEM及BET结果得知,900℃之球壳表面有许多奈米级孔洞出现;当加热至1000℃和1100℃时,球壳形成稳定相之Al2O3结构,壳层表面趋於平滑,且球壳在晶界处有微裂缝存在;由BET 结果得知,比表面积及总孔洞体积会随锻烧温度之增加,有增加之趋势。
-
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。
-
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。
-
The urbanization of polder area can result in change of land utilization property, increase in surface runoff coefficient, decrease in water surface ratio and increase in modulus of flood peak, and puts forward higher requirement for the surface drainage standard.
圩区城市化会造成土地利用性质改变、地表径流系数增大、水面率减少,使洪峰模数增加,从而对排涝标准又提出了更高的要求。
-
It includes spatial and temporal distribution of microwave radiometry characteristics, retrieving surface parameters, distribution of surface parameters and near-surface passive microwave remote sensing on sand desert area.
以往的研究表明,综合利用微波散射辐射特性能够帮助人们选择决定反演参量的观测参数、提高反演精度和加深对地表面与微波辐射之间交互作用的机理的理解。
-
During the simulation, surface current from primary electrode is computed. Taking rectangular triangle as the mesh unit, the integral formula of surface current can be simplified to a product of a difference expression and the surface area. So the computation complexity of FEM will be decreased and the time-cost will be cut down greatly.
在模拟过程中,需要计算主电极表面电流,通过选用直角三角形作为离散单元,将表面电流的二重积分表达式简化为一个差商表达式与主电极表面积的乘积,极大地降低了有限元分析的复杂度,减少了计算时间。
-
The results indicated that:(1) plant height and tillering number decreased, and root length, root surface area, root volume and rootlet number increased under drought stress; straw mulched on surface soil and pig manure mixed in soil could improve the growth and morphological property of rice root, while straw mixed in soil and pig manure mulching had no significant effects;(2) the contents of chlorophylls and the activities of SOD, POD and CAT decreased significantly under drought stress, and straw mulching on surface soil and pig manure mixed in soil could restrain these decreases.
结果表明:①干旱胁迫下水稻株高降低、分蘖数减少,根系则表现出主根伸长、支根增多、根表面积和根体积增加;秸秆表施和猪粪混施可明显改善水稻的生长和根系形态,而秸秆混施和猪粪表施的改善作用不显著;②干旱胁迫下叶片叶绿素含量显著降低,超氧化物歧化酶、过氧化物酶及过氧化氢酶活性均显著下降,秸秆表施和猪粪混施能够在一定程度上抑制这种下降幅度。
-
The trivalent chromium passivation film based on zincate plating obtained has compact structure with no obvious crack, and excellent anticorrosion performance. Different compositions are detected from the surface to inner film, the surface mainly contains Cr2O3-Cr3-ZnO compound, the inner (1030 nm to surface) composes of Cr2O3-ZnO-Zn.The forming process of passivation film possibly consists of four steps which are zinc dissolution, basic area appearance, gelatiniform film forming and converting to passivation film.
结果表明:锌酸盐镀锌层的三价铬钝化膜表面结构致密、无明显裂纹,具有较好的耐腐蚀性能;这种钝化膜表层与里层的组成不同,表层的组成为Cr2O3-Cr3-ZnO共混物;里层(离表层10~30 nm处)的主要组成为Cr2O3-ZnO-Zn共混物;钝化膜的成膜过程可能包括镀锌层的溶解、碱性薄层的形成、胶状膜的形成和胶状膜转化成钝化膜4个步骤。
-
Under scanning electron microscopy, along with the extension of the culture time, the chondrocytes grew and propagated well on the surface. On 3 weeks, the cells adhered to the surface, and extended the pseudopodia, by which the cells were connected each other. The cells secreted matrix, which deposited around the cells and the surface of meniscus. In some area, the cells formed the structure like cartilage lacuna.
扫描电镜观察,随着培养时间延长,细胞在材料表面生长良好,细胞密度增加。3周时,可见细胞黏附在材料表面,有伪足伸出,细胞间通过伪足相互连接,并可见细胞分泌的大量基质沉积于细胞周围和材料表面,部分区域形成类似于软骨陷窝样结构。
- 相关中文对照歌词
- Episodes
- North Memphis Area
- Area Code 229
- Grey Area
- Area
- Hacker
- Cracks In The Surface
- Clear The Area
- Area Codes
- Hot Gyal Anthem
- 推荐网络例句
-
Tom: You are right, he worked hard all the time.
你是对的。他一直都是努力工作。
-
Take shortcomings,failures,and mockings of others as commonplace and a drive to complete oneself,hold your own opinion over the evalution and disscution divested from others,afterwards sink into the state of eliminate mistakes if any or encourge oneself being not being influenced by the sayinngs of others or having no ideas to do.
把缺点、失败及别人的耻笑等看成是一种常事,当成完善自己的动力,对别人的评价和议论自己心中有主见,做到&有则改之,无则加勉&,不为人言所左右或无所适从。
-
We are going to have a swim this evening.
今天晚上我们要去游泳。