后表面

We also get the proportion of the four surfactants(30:2:1:8).Studing the factors of temperature and metal cation,we found that the floatability resisting to the low temperature and metal cation are improved with the addition.

高岭石浮选体系中，表面活性剂的组合-添加顺序同样能影响表面活性剂的作用效果，表面活性剂后加能提高高岭石的回收率，表面活性剂先添加和预先混合再加能降低其回收率。

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。

In order to resolve the repeatability of contact angle measurement, the factors such as droplet volume, measure time, hydrophilic and hydrophobic targets were studied by using deionized water on glass and paraffin surface.

针对喷雾液滴在靶标上接触角测量的重现性不佳等问题，以玻璃和石蜡模拟靶标表面，研究了去离子水在亲水和疏水靶标表面上液滴体积和测量时间对接触角测量的影响，结果表明：液滴体积越大接触角越小，这种趋势在亲水表面比疏水表面上更突出，测量时体积可分别选择在0.5~1μl和1~5μl；液滴滴下30-50s后与固体表面基本达到平衡，对接触角测量的准确度影响较小。

The SEM analysis shows the nano-size roughness on the plasma treated or chemical surface modified wool scales.Wenzel equation and Cassie and Baxter equation are used to illustrate the relationship between surface roughness and contact angle,then to reveal the reasons why surface modifications are able to impart an improved water repellence and oil repellence and stain resistance to wool.

SEM研究结果表明，经低温等离子体表面改性或特定化学改性后的羊毛鳞片表面呈现纳米尺度的沟槽和凹凸结构，应用Wenzel公式和Cassie and Baxter公式阐述了表面粗糙度与接触角的关系，揭示了羊毛表面改性对于提高拒水拒油整理效果的原因所在。

However the addition order of tartrate and phosphate on activity of enzyme adsorbed by goethite produced the greatest impact.

胶体表面类型（硅氧烷表面或羟基化表面）及阴离子配体对胶体表面负电荷的贡献量在酶的吸附及活性保持中的重要性；B阴离子配体后加入时酶的吸附量一般比配体先加入时的高；C）配体加入顺序对二氧化锰的影响最显著，对砖红壤和高岭石的居中；对针铁矿的次之；对黄棕壤的最小。D）乙酸或草酸加入顺序对高岭石上固定化酶比活性的影响最大，而酒石酸或磷酸则对针铁矿影响最大。

For different surface roughness of electrodes and glycol concentration of glycol/water mixture, pressurized water breakdown experiments are carried out. Experimental results suggest that Mirza's formula is valid and independent of surface roughness and glycol concentration, and it is accumulative for surface polish, glycol additive, and pressurization for the capability to improve electrical breakdown strength. Moreover, the increase of electrical breakdown strength of water dielectric for surface polish is explained with bubble breakdown. Especially, highest stress of 235.5kV/cm observed in glycol/water mixture with a glycol concentration of 80% at a hydrostatic pressure of 12atm is about one time greater than that in pure water at constant pressure.

通过改变电极表面光滑程度和乙二醇浓度，分别进行了加压水介质击穿实验，证实了不同电极表面光滑程度和乙二醇浓度下Mirza关系式仍成立，抛光电极表面、添加乙二醇与加压在提高水介质电击穿能力方面具有可叠加性，将抛光电极表面、添加乙二醇与加压分别进行了比较，特别，在静压12atm、乙二醇浓度80%下，得到实测最高击穿场强为235.5kV/cm，其有效时间归一化后的击穿场强比常压下纯水的相应值提高了112.2%，运用气泡击穿模型对抛光提高水介质击穿场强进行了物理解释。

Watch Glass Cleaner is a ready-to-use glass cleaner for use on glass window, mirrors, plastic and glossy painted surfaces.

将玻璃清洁剂加在喷枪内，喷须要清洁之表面后，用乾毛巾或抹手纸清抹，如在大型玻璃表面，用洁净之水桶加入清水和适量之玻璃清洁剂，用毛头涂在玻璃表面，再用水挖将玻璃表面清挖乾净。

The results show that the hydrophilicity of PLA film is improved by introduction amido: the contact angle decreases from 78° to 56° and the free energy increases from 42.7mJ/m^2 to 51.4mJ/m^2. Compared with the control, osteoblast spread out more filopodia after 3 d incubation on amidation surface, and it entered cell division phase more quickly, which indicated that the surface amidation could promote the cell's adhesion and proliferation on the PLA film.

结果表明，酰胺基的引入改善了PLA膜的表面亲水性，其表面水接触角由78°减少到56°，自由能由42.7mJ/平方公尺增大到51.4mJ/平方公尺；与对照组相比，成骨细胞在改性表面培养3d后有大量的丝状伪足伸出，并且较快地进入了细胞分裂期，表明PLA膜表面的酰胺化能够促进细胞的黏附和增殖。

At 4 weeks following implantation, cells on the surface of coralline hydroxyapatite were found and connective tissues were seen in the material pores in the experimental group. Cells on the coralline hydroxyapatite were observed only in the control group. At 8 weeks, new bone formation was detected on the surface of coralline hydroxyapatite; bony tissue deposition and a few chondroid tissues were found in the pores or surrounding the pores in the experimental group. A few fibrous connective tissues were observed in the control group. At 12 weeks, abundant mature woven bone was detected on the surface of coralline hydroxyapatite; medullary cavity-like structure and vessels were found in some regions in the experimental group. No new bone or bony tissues were found in the control group.

植入材料后4周，实验组可见珊瑚羟基磷灰石表面有细胞生长，孔隙内有结缔组织长入；对照组仅见珊瑚羟基磷灰石表面有细胞生长。8周时珊瑚羟基磷灰石表面有新生骨形成，孔隙内和孔隙边缘可见骨样组织沉积和少量软骨样组织形成；对照组仅见少量纤维结缔组织长入。12周时珊瑚羟基磷灰石材料表面有较多成熟编织骨形成，部分区域可见髓腔样结构形成，并有血管长入；对照组仍未见新骨及骨样组织形成。

It achieves a certain extent effect of waterproof and oilproof. 3. Test the change of surface ingredient before and after the fluoridized of the FRP usingthe reflecting method of infrared spectrum. Then dip the fluoridized FRP in the cold water, warm water and petroleum ether for about half an hour, and surface ingredient havent changed too much.

用红外光谱反射法测试了经含氟物处理前后的玻璃钢表面结构变化，并且分别测试了在冷水、温水、石油醚中浸泡洗涤半个小时后的表面含氟处理的玻璃钢的表面结构，发现其表面结构与浸泡前无大的变化。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。