查询词典 developable surface

Surface frication meteorological index related to meteorological conditions was defined.Based on its influence to safety driving,surface frication meteorological index grades were established in high way of Jilin province.And a method of forecasting surface friction meteorological index was discussed according to weather conditions.

定义了与气象条件有关的路面摩擦气象指数，根据其对车辆安全行驶的影响，制定了吉林省高速公路路面摩擦气象指数的等级划分标准，研究探讨了根据天气条件预报高速公路路面摩擦气象指数的方法。

The trivalent chromium passivation film based on zincate plating obtained has compact structure with no obvious crack, and excellent anticorrosion performance. Different compositions are detected from the surface to inner film, the surface mainly contains Cr2O3-Cr3-ZnO compound, the inner (1030 nm to surface) composes of Cr2O3-ZnO-Zn.The forming process of passivation film possibly consists of four steps which are zinc dissolution, basic area appearance, gelatiniform film forming and converting to passivation film.

结果表明：锌酸盐镀锌层的三价铬钝化膜表面结构致密、无明显裂纹，具有较好的耐腐蚀性能；这种钝化膜表层与里层的组成不同，表层的组成为Cr2O3-Cr3-ZnO共混物；里层(离表层10~30 nm处)的主要组成为Cr2O3-ZnO-Zn共混物；钝化膜的成膜过程可能包括镀锌层的溶解、碱性薄层的形成、胶状膜的形成和胶状膜转化成钝化膜4个步骤。

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。

This company uses from produces the high-quality sapphire raw material, main production: Upscale sapphire glass, Shan Qiao, Twinbridge, Shan Bo, double divination, plane, slot, aperture, handset surface Bolivia, mp3 surface Bolivia, mp4 surface Bolivia, three agglutination chips, calendar crystal, heteromorphous table mirror as well as laser infrared sapphire window glass, pressure transmitter window, precision instrument instrument element and so on. The design is diverse, by the fine product, the price which most gives preferential benefit, provides the high quality at low price for the customer the commodity.

本公司采用自产高级蓝宝石原材料，主要生产：高档蓝宝石玻璃、单桥、双桥、单卜、双卜、平面、开槽、开口、手机面玻、mp3面玻、mp4面玻、三件粘合晶片、日历晶、异形表镜以及激光红外线蓝宝石窗口玻璃，压力传感器窗口、精密仪器仪表元件等。

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。

Under the influence of the sunlight and with the help of its strong oxidization capacity, the photo-catalyst can oxidize nearly all the organic matters on the surface into H 2 O and the corresponding nontoxic inorganic materials. At the same time, under the combined actions of the characteristic nanometer structure of its surface, the hydroscopic properties of the complex additives and the light-induced amphiphilic properties (hydrophilicity and lipophilicity) of Ti02 itself the surface of the glass is made superhydrophilic, so that it becomes easily washable, anti-fog and not vulnerable to recontamination to keep the glass clean and transparent. And it also has such functions as sanitization, sterilization, foreign odor elimination and air refreshing.

在阳光的作用下，光催化剂以其特有的强氧化能力，可将其表面的几乎所有有机物完全氧化为H 20及相应的无害无机物，同时在其表面特有的纳米结构、复合添加剂的吸水性和Ti02本身的光致两亲性的共同作用下使玻璃表面具有超亲水性，变得易清洗、防雾和不易被再污染而保持洁净透明，同时具有消毒、杀菌、消除异味、清新空气等功能。

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。

Carry out surface preparation by Grinder and dust free self-enclosed portable grinder until to remove surface laitance and provide sound and textured surface.

使用地坪打磨机和无尘封闭手提磨机去除表面粗糙物，并提供涂装对表面所要求的粗糙度。

It revealed: Firstly, the plant community, the major environmental factors illumination degrees, surface temperature, air temperature, day air humidity changes curve and changes in point of curve similar; Secondly, measuring three points mixed lawn-Chinese littleleaf box-Guohuai plant community in the three observation of the ecological effects of the plant community most obviously, its sunshade rates, the average surface temperature 0 cm Service rates, the average surface temperature -5.0 cm Service rates, the average temperature cooling rate, the average humidification effect respectively 36.3%, 34.7%, 18.9%, 6.9%, 13.9%; wood forest plant community occasions, mixed lawn-Chinese littleleaf box plant community smallest.

以校园为例进行实地观测，比较详尽地分析了生物种群组成的多样性对园林生态系统的影响，结果表明：①植物群落内的主要环境因子光照度、地表温度、空气温度、空气湿度的日变化曲线与对照点日变化曲线相似；②3种测点中混合草坪－黄杨－国槐植物群落在3种观测的植物群落中生态效应最明显，它的遮光率、地表0 cm处平均降温率、地表－5.0 cm处平均降温率、气温平均降温率、平均增湿效应分别为36.3%，34.7%，18.9%，6.9%，13.9%；桐树林植物群落次之，混合草坪－黄杨植物群落最小。

This paper studied the grinding mechanism of this new type superalloy on the base of systematical analysis of variable characteristics of the grinding force, grinding temperature, topography of ground surface, residual stress distribution and hardness distribution of surface layer, as well as morphology of surface layer from a metallographical point.

摘 要：为解决定向凝固高温合金DZ4在磨削加工中极易发生的磨削烧伤问题，采用先进的测试方法，对磨削过程中磨削力、磨削温度、工件表面形貌、表面层残余应力分布、表面层显微硬度、表面层金相组织等变化规律进行了分析研究，揭示出该种新型高温合金材料磨削烧伤机理。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样