查询词典 surface area

The result shows that smooth sizing with some tiny and uniform protuberances can enlarge the surface area of the glass fiber, and increase the wettability of resin to glass fiber, so as to increase the interface properties of the glass fiber/resin composites.

分析结果表明，纤维的表面比较光滑并存在一些小而规整的小突起时，涂层的分布是均匀的，这些小突起有利于增大纤维的表面积，提高纤维表面的粗糙程度，从而增强纤维与树脂之间的结合性能。

Width and height of ridges on increasing the land's surface area and ridge volume per unit land are compared.

比较了不同垄形、垄宽和垄高在增加单位土地表面积和垄体体积方面的效果。

It was special cellulose, extracted from a certain species of green algae, with 100 times the surface area of cellulose found in paper.

这是特殊的纤维素，从某些种类的绿色藻类中提取，100倍，在文件中找到纤维素表面积。

With high specific surface area, ordered pore structure, facilely tailorable pore size, and fine chemical stability and thermostability, Mesoporous molecular sieve MCM-41 has wide application prospects in many fields, such as catalyst chemistry, adsorption and separation.

介孔分子筛 MCM-41 具有比表面积高、孔道结构规则及孔径易调节、化学稳定性和热稳定性好、表面易改性等优点，在催化化学和吸附分离等领域都有很大的潜在应用前景。

You know, there are little bumps, or undulations that increase the surface area.

肠胃道的表面有一些可增加表面积的小隆起或突出物。

In the valley, down which watercourses run, a series of artificial lakes shine in the sun; one of these has a surface area of 15 Ha (the first in France to be made with an artificial membrane).

顺着山谷的河道向下，是一系列的人工建造的湖面，在阳光下波光粼粼。其中一个面积达15公顷（法国第一个使用人造薄膜的人工湖）。

The synthesis process of silica using waterglass and sulpHuric acid as materials was studied systematicly. The results show that reacting temperature, reacting time, sulphuric acid concentration, reactive stiring rate, modulus of waterglass,adding salting agent,alkali concentration,the total volume of acid and alkali added , different methods of adding materials may have influence on the specific surface area or dibutylphthalate absorption number of silica in different degree.

本文系统地研究了以水玻璃溶液和硫酸为原料合成沉淀法白炭黑的工艺，研究发现：反应温度、反应时间、硫酸浓度、反应搅拌速度、水玻璃模数、添加盐析剂、底碱浓度、酸碱加入的总量、加料方式对白炭黑的比表面积或DBP吸收值有不同程度的影响。

The following main results are obtained: The TiO_2 photocatalyst with small crystallite size, high surface area, narrow and uniform pore size distribution, and microporous frameworks could be prepared out by applying MW radiation in the preparation process. The microwave-induced fluorescence technique verified for the first time that microwave enhanced the formation rate of hydroxyl radical, leading to the increase in the photocatalytic efficiency. Compared with the conventional catalyst, TiO_2 prepared by MW dielectric heating owns a higher UV absorption ability, and its optical absorption edge and photovoltaic response are shifted toward the short wavelength region, resulting in increase of photooxidation efficiency. The photocatalytic conversion and the mineralization ratio of acetaldehyde are increased respectively by 30% and 40% over the TiO2 prepared by MW radiation when compared to the TiO2 prepared by the conventional heating. For the MW-assisted photocatalytic reaction over the MW-prepared TiO2, production of hydroxyl radicals is enhanced by 22.5%, and the photocatalytic conversion is accordingly increased by 20%. Similarlly, applying MW also increased the photocatalytic conversion and the mineralization ratio of acetaldehyde over TiO2/Al2O3 sample.

论文得到如下主要结果和结论：(1)微波介电加热TiO_2 溶胶可得到晶粒度小、光催化活性高、比表面积大和孔径分布窄而均一，且微孔发达的TiO_2光催化剂；在溶胶干燥处理过程中微波可使催化剂表面缺陷增加，进而导致光催化反应过程有更多的活性羟基自由基产生；(2)微波制备能显著增强TiO_2 样品的紫外光吸收率，并使其光吸收和光伏响应阈值发生蓝移，从而提高TiO_2的氧化还原能力；(3)与常规加热法所制TiO_2比较，微波法制备的TiO_2对乙醛的光催化降解转化率提高30%，CO_2生成率提高40%以上；(4)与未加微波辐射时相比，发现在光催化反应过程中施加微波，TiO_2 的羟基自由基生成速率提高了22.5%，相应CH_3CHO 光催化降解转化率提高了20%；对Al_2O_3/TiO_2催化剂，CH_3CHO 光催化降解转化率甚至提高了33%，同时CO_2 的生成率也都大幅度提高；(5)微波辐射可改变光催化降解乙醛的产物分布，推断施加微波时乙醛光催化降解按照羟基自由基引发的链式反应机理进行，微波&非热效应&起主要作用。

Instead, it featured a 3.5-inch "multi-touch"widescreen display that took up most of its surface area.

相反，它功能一个3.5英寸的&多触摸&宽屏显示了它的大部分面积。

Montmorillonite is a large surface area and wide distribution clay mineral, it is also one of main activated components in soil.

蒙脱石矿物是土壤中比表面积大、分布很广的一种粘土矿物，也是土壤中主要的活性组份之一。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。