粗糙度

The soil erodibilities are compared and appraised for the majority of the soil types in Ningxia. The method published by D. W. Fryrear et al is adopted to calculate erodible fractions for the soils in Ningxia. The erodibilities of main soil types are compared and analyzed. Spatial distribution of soil erodibilities in the region can be perceived on the Map of Ningxia Soil Erodibility. The map is based on the digitized map of soil types of the all region by means of the geographical information system of Region Manager. Evaluation results show that erodible soils occupy a large portion of the total area of the region.(3) The third task is evaluation of effects of human activities for farming on soil erodibility. Tillage and cultivation can alter soil properties. The paper, based on the discussion on the characteristics of farmland suffering wind erosion in the region, analyzes the contents and intensities of farming disturbing surface soil. Emphasis is paid on the effect of farming on erodibilities of each type of soil.

W Fryrear等人的计算土壤可蚀部分含量的方程，此方程的自变量包括土壤有机质、碳酸钙、沙粒含量、沙粘比，计算了宁夏主要土壤类型表层的可蚀含量，进而比较它们的可蚀性，并以宁夏土壤分布图为底图用地理信息系统建立了宁夏土壤风蚀数据库，完成了宁夏土壤可蚀性图，评价结果显示宁夏地区主要的土壤类型较容易遭受风蚀；（3）农业经营对土壤风蚀的影响及其评价，在分析宁夏农业土壤遭受风蚀特征的基础上，首先讨论了农业活动对土壤理化性质的干扰，评价主要耕作栽培措施对土壤风蚀的影响，选取粗糙度、表面结皮、可蚀颗粒含量、留茬和有效时间为指标，用打分方法作了评价。

Digital business card printing and membership card making machine products in making binding phase, that is, it is possible to self-crimping the paper or paper granula roughness.

数字制卡和会员卡制作机产品在作出的装订阶段会产生问题，即有可能纸张卷曲或纸张颗粒粗糙度等问题。

Immediately after processing digital business card printing and membership card making machine products in making binding phase, that is, it is possible to self-crimping the paper or paper granula roughness.

立即进行后加工数字制卡和会员卡制作机产品在作出的装订阶段会产生问题，即有可能纸张卷曲或纸张颗粒粗糙度等问题。

The semi-ellipsoidal surface will be replaced by a hemispheroidal surface in the next device design. The required surface roughness of the metallic parts should be as low as ＝0.05μm.

下一阶段的人工椎间盘将以半球形面取代半椭圆球面设计，并且需提出加工制造与抛光处理流程，要求表面粗糙度达到＝0.05μm以下，使表面间有较平顺的接触行为。

If using humidly hardener, the surface can be humid, but there should not be any panice. b the surface should be fastness, compact and smooth, without any sand streak, floppy shell, crack, comb,bug holes. Using light blasting spray to clean the unevenness and incompact raffle, and getting the appropriate roughness, filling the crack with HF61-30 mixed with fine sand. C the surface must be clean, and have no oil stain.

如采用湿固化涂装，则表面可潮湿但不能有浮水。b水泥表面应坚固、密实、平整，不能有起砂、起壳、裂缝和蜂窝麻面等现象，可采用轻喷砂法除去水泥面上的不平整和不结实的杂物，并使其具有一定的粗糙度，对裂缝可使用HF61-30添加适量细砂填补。c表面必须清洁，须除去表面油污。

In comparison to the process simply using a Hall ion source for the IBAD, the coating has a more compact and uniform structure and a better property in polishing. After surface modification, the surface roughness of the substrate is reduced to 0.635 nm which is the same as that of the S-SiC substrate, also the surface reflectance is obviously enhanced to that of the fine polished zerodur glass.

测试结果表明：与单纯霍尔离子源辅助方法相比，该工艺方法制备的Si改性涂层生长得更加致密、均匀，抛光特性良好；改性抛光后表面粗糙度降低到0.635 nm，达到了S-SiC基底的水平；改性后RB-SiC基底的反射率明显提高，达到了抛光良好的微晶玻璃的水平。

During the iodination process the first product was theγ-AgI which converted in a slow process to β-AgI.

Ag层的厚度增加，晶粒增大，表面粗糙度也随之增大；在Ag层碘化反应过程中刚开始生成的产物是γ-AgI，γ-AgI逐渐缓慢地向β-AgI转化。

In this paper, the action mode of NMA in the traditional polyacrylate emulsions was studied by extracting the traditional self-curable PA latex film before curing and comparing the properties of two kinds of model latices A and B. Where model A was prepared according to the traditional self-curable PA latex and the model B was a blend of polyacrylates emulsion and an aqueous solution of poly-NMA. The total proportions of the ingredients were adjusted just the same as of model A. The influences of monomers, the dosages of crosslinking monomer A and emulsifier etc.

文中通过构造&共聚&和共混两个胶乳模型，研究了常规&自交联&PA胶乳中N-羟甲基丙烯酰胺的作用模式；分析讨论低温水性PA胶乳的聚合工艺及影响因素；通过分析胶膜的溶失率、吸水率、力学性质和Tg，及用扫描探针显微镜观察薄膜的微观表面形态和粗糙度的测试，研究水性PA胶乳的成膜性能、稳定性及基本性能；测试并分析胶乳作为涂料印花粘合剂和织物涂层剂的使用性能；通过核壳聚合技术对无甲醛胶乳产品进行性能优化。

A two-dimentional isothermal transient full film and part film EHL model has been established, which is used to analyze lubricational behavior of cam-tappet pair of valve train. Using mulit-gird method, the oil film status during intake duration could be investigated with the consideration of dynamic effect. The influences of surface roughness are also taking into account in the part film model.

建立了配气凸轮-挺柱副润滑油膜分析的二维等温瞬态全膜及部分膜模型，运用多重网格法进行计算，结合动力学计算模型分析了从进气门开启至关闭期间油膜状态的变化，并在部分膜润滑下考虑了表面粗糙度对其影响。

In manufacturing plants, tool life and surface roughness are generally considered to be the most important factors in machinability.

在制造厂里，刀具寿命和表面粗糙度通常被认为是可机加工性中最重要的因素。

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。