表面光滑的

The results show that the surface microphotograph yielded in multiple-step machining with slow feeding and in one-step compound process is satisfactory, and there are fewer defects, lower deformation and thinner metamorphic layers; while that produced in other processes is quite rough, there are more defects and bigger deformation on the machined surface, and they are detrimental to assembly properties and fatigue life of fastening holes.

结果表明，钻扩铰多步慢进给工艺和一步复合制孔工艺所加工出的表面，平整、光滑、加工缺陷少、晶格变形小、变质层薄；而其它工艺条件下，孔表面微观形貌复杂、加工纹路紊乱、表面缺陷多、晶格畸变大，变质层厚，这些加工状况，对紧固孔的装配性能和疲劳寿命都有很大的影响。

The results show that the drag reduction effect is obvious in turbulent flows due to the riblet surface with the comparsion of the momentum loss thicknesses and wall friction stresses of smooth surface and riblet surface.

通过对比脊状表面与光滑表面动量损失厚度和壁面摩擦应力，反映了动量损失厚度的大小与壁面摩擦应力的大小具有一致性，充分证实了脊状表面在湍流中具有一定的减阻效果。

The results showed that compared with smooth surface, there was secondary vortex in micro flow field;, the viscous sub-layer in the near region of riblet surface was thicker; turbulence intensity was depressed and riblet surface was hydrophobic.

研究表明，与光滑表面相比，脊状表面微观流场结构中存在2次涡，近壁区的黏性底层厚度比平板的要厚得多，湍流度显著降低，且脊状表面表现出明显的疏水性。

The results showed that compared with smooth surface, there was secondary vortex in micro flow field, the viscous sub-layer in the near region of riblet surface was thicker; turbulence intensity was depressed and riblet surface was hydrophobic.

研究表明，与光滑表面相比，脊状表面微观流场结构中存在"二次涡"，近壁区的黏性底层厚度比平板的要厚得多，湍流度显著降低，且脊状表面表现出明显的疏水性。

Alloy of polyethylene of element of the methodological freeboard that make, titanium and sample of alloy of cobaltic chromic molybdenum, FITC of classics of cuticular grape coccus labels, the cuticular grape coccus that after sample of artificial and articulatory material is disinfected, vaccinal FITC labels, sample surface cent is slick surface and rough surface, every groups each 6 sample, brood the 24 orifice plate that contain bacterium and sample below 37 ℃ after Yo 30min, with fluorescent microscope observation, sample uses observation of scanning report lens.

方法制作超高分子聚乙烯、钛合金和钴铬钼合金试样，表皮葡萄球菌经FITC标记，人工关节材料试样消毒后接种FITC标记的表皮葡萄球菌，试样表面分为光滑表面和粗糙表面，每组各6个试样，将含有细菌和试样的24孔板在37℃下孵育30min后，用荧光显微镜观察，试样用扫描电镜观察。

The comparative experiments on the abrasion under unlubricated friction condition between the samples with smooth and coupling nonsmooth surfaces were performed by help of the experimental optimum design.

采用试验优化设计方法对相同试验条件下凹坑形仿生光滑试样以及具有仿生耦合表面的非光滑试样进行了干摩擦磨损试验对比研究。

The comparative experiments on the abrasion under unlubricated friction condition between the samples with smooth and coupling non-smooth surfaces were performed by help of the experimental optimum design.

采用试验优化设计方法对相同试验条件下凹坑形仿生光滑试样以及具有仿生耦合表面的非光滑试样进行了干摩擦磨损试验对比研究。

Joining of alloy white cast iron, as an unsmoothed surface material, and steel is one of the key techniques in study of the reduction of soil adhesion and resistance of bionic unsmoothed surfaces.

仿生非光滑表面减粘降阻研究的关键技术是非光滑单元体材料与钢的连接。

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 research of the ultra-smooth surface in our country is very late, So, the classical polishing method is still very familiar in our country.

我国超光滑表面加工技术的研究起步较晚，古典法仍是我国目前普遍采用的一项超光滑表面的加工方法。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。