查询词典 surface element

The invention discloses an electrochemical method for preparing a hydroxylapatite particle thin coating on the surface of a metal implant, which comprises the following steps: electrolyte is put into a container equipped with a constant temperature heating system and heated to be 30 DEG C to 95 DEG C, and then the temperature is kept; platinum is taken as the anode and evenly distributed around the container, and the metal implant is taken as the cathode, put in the middle of the container and totally soaked in the electrolyte; DC voltage of 2V to 4V is added between the anode and the cathode, the surface of the metal implant has cathode reduction reaction, the pH value is increased and the supersaturation degree of the hydroxylapatite is also increased, so as to crystalize on the surface of titanium; after 0.5h to 5h of deposition, a layer of hydroxylapatite particle thin coating which can be excellently adhered to the matrix metal is formed on the surface of the implant.

本发明公开了一种在金属植入体表面制备羟基磷灰石颗粒薄涂层的电化学方法，在装备了恒温加热系统的容器中装入电解液，并将电解液加热到30～95℃恒温；将铂作为阳极均匀分布在容器四周，金属植入体作为阴极置于容器中间，完全浸没在电解液中，两极之间加直流电压2～4V，金属植入体表面发生阴极还原反应，pH值升高，羟基磷灰石过饱和度增加，从而结晶在钛金属表面；经过0.5～5小时沉积后，在植入体表面即可形成一层与基体金属结合优良的、薄的羟基磷灰石颗粒薄涂层。

This paper put forward the optimized methods include reconstructing the characteristic curve by reasonable use of the adjust tools and analyse tools of the modeling software, admeasuring the automotive model surface correctly, simulating the breaking surface and creating the surface in the right turns which is good for modeling a smooth and exactitude surface.

本文通过合理利用反求软件中的造型工具和分析工具，正确划分反求模型的造型区域，使用正确的曲面造型方法，对反求曲面的特征网格线进行二次优化，并对突变曲面进行拟合再生成处理及建立合理的曲面生成顺序等方法，最终获得了仿型度和光顺度都很高的反求曲面。

The results show that the vehicle acceleration, the dynamic wheel load and offload factors increase with train speed, and distribute linearly. The safety of train operation and running comfort can meet the requirements when the high-speed train under secondary suspension passing through ballasted track subgrade structure. The dynamic displacement of the system is less influenced by train speed. The dynamic stress of subgrade surface increases with speed improving, and it is distributed as saddle along the lateral direction and as parabola along the longitudinal direction of subgrade surface. The dynamic stress of subgrade declines sharply along the depth of subgrade. The dynamic stress on 3 m depth below subgrade bed surface is about 16 percent of that of subgrade surface.

结果表明：车体加速度、动轮载和轮重减载率均随车速的提高而增大，呈线性分布；具有二系悬挂的高速列车通过有砟轨道路基结构时，列车的安全性及舒适度均能满足要求；系统动位移受速度影响较小；路基面动应力随速度的提高而增大，并在横向呈马鞍形分布，在纵向呈抛物线形分布；路基动应力沿路基深度方向衰减较快，在基床表面下3 m处，动应力只有基面的16%左右。

GE.Hubb root is from 0.20mm to 0.50mm, and 95% roots' diameter is thinner than 0.40mm. The total surface areas of roots is 10139.68cm2, and the surface areas of roots is about 2 to 3 times to soil surface areas in the surface layer. Enlacing and concretion to soil profile of eulaliopsis binata Retz.

蓑草根系平均直径0.20mm—0.50mm，95%的根系平均直径小于0.40mm，根系总表面积10139.68cm~2，在土壤表层根系表面积高达土体表面积的2-3倍，根系表面对土壤颗粒的巨大吸附作用是蓑草显著提高土壤抗侵蚀能力的另一个重要原因。

One side of a thin elastic base cloth is attached with a layer of machine woven cloth, and the other side of the base cloth is compounded with a PU layer via wet processing of synthesized leather, then the base cloth is dried and molded, and the machine woven cloth is peeled during a coiling process; wherein, the base cloth and the machine woven cloth are fuzzed in a single surface, the fuzzed surface of the machine woven cloth is attached to the non-fuzzed surface of the base cloth by low concentration hydrophilic adhesive, and the PU layer is compounded to the fuzzed surface of the base cloth.

一种薄型、弹性PU合成革的制作方法，先在薄型、弹性基布的一面贴合一层机织布，再在基布的另一面用合成革湿法工艺复合PU层，干燥定型，然后在收卷过程中剥去机织布，其中基布单面起毛，机织布也为单面起毛，机织布的起毛面用低浓度的水性粘结剂贴合在基布的不起毛面上，PU层复合在基布的起毛面上。

The greater the proportion of incident light that is reflected at the sameangle as it strikes the surface,the glossier the surface appears.A surface that scatters light randomly has a diffuse appearance.Paper gloss depends mainly on smoothness and the type of surface coating applied.It can also be altered by finishes,such as varnishing and laminating.

光泽的表面，是由何种方式光线反射it.the更大比例入射光即反映在sameangle作为它打击面，glossier表面appears.a表面 scatterslight随机已漫appearance.paper光泽主要取决于平滑型表面涂层能applied.it 也将改变饰面，如varnishingandlaminating。

Following is the factors ideating with the surface of old concrete in different way ( including brushing surface , chiseling surface , cleaving surface ), adherence agent ( including cement slurry , cement sand slurry , cement slurry with the u expansion agent ), the freeze - thaw circulation times and air - entraining .

主要考察了老混凝土表面不同处理方式(刷毛面，凿毛面，劈裂面)、界面粘结剂类型(水泥净浆，水泥砂浆， u型膨胀剂水泥浆)、冻融循环次数等对新老混凝土粘结面劈拉强度的影响，以及冻融作用下新混凝土加气对粘结面劈拉强度的影响。

The roughness shape of ceramic machining surface is analysed by four kinds of test methods: surface profile, scanning electron microanalyses, bearing ratio curve and profile ratio of peak to valley. Ceramics are machined by"plateau honing"to obtain the plateau property and wearability of machining surface. The machining surfaces own its functional surface.

采用表面微观轮廓、扫描电镜观察、表面支承长度率曲线以及表面轮廓峰谷比等四种研究方法，详尽分析了陶瓷材料加工表面的轮廓形状特征，并采用平顶珩磨加工方法，获得陶瓷加工表面的平顶特性，提高了加工表面耐磨性。

The bare cells with smooth surface presented transverse outspreading effect at mica surface. Great changes took place in surface roughness for those bacterial cells after metallization. A large number of nickel nanoparticles were observed to be equably distributed at bacterial surface after activation and subsequent metallization.

结果显示，空白对照菌表面平整光滑并在云母基底表面表现出较显著的铺展效应；经过活化和化学镀镍后的菌细胞表面粗糙度明显增大，并在基本保持原有菌模板外形的基础上，其高宽比有所增大。

The surface roughness of the laser shock peened medium has effect on the high frequency of laser-generated surface acoustic waves. As the impact times of the laser shock peening increase, the surface roughness has little effect on the dispersion of laser-generated surface acoustic waves. From the theoretical curve and experiment curve, it can ...

本文研究的结果，可对研究样品激光冲击硬化后残余应力、晶粒方向改变和错位密度增加分别对激光声表面波色散影响提供了基础，并对利用激光声表面波的色散特性来研究激光冲击硬化材料冲击层材料性质的变化具有一定的意义。

After oxidation, pH value of the surface of carbon black has a specific relation with the volatile content.

氧化后炭黑表面的pH值与挥发分之间有一定的关系。

Knowing that such a person is warped and sinful; he is self-condemned.

因为知道这等人已经背道，犯了罪，自己明知不是，还是去做。