查询词典 developable surface

If the blank is wrinkling on the blank holder surface, the cause is most likely one of four factors: insufficient blank holder force; a poor fit between the die face and blank holder surface; an equalizer block that is holding the die face apart from the blank holder surface; or severe blank holder deflection.

褶皱起因于不充分的拉伸或失去控制的压缩变形。如果板料在压边面上起皱，绝大多数起因是后面四个因素之一：不充分的压边力；凹模和压边圈表面不良的匹配；凹模和压边圈间的平衡块；或者是压边圈的严重变形。

PAN-ACF was modified by different methods, such as heat oxidation, nitric acid dipping and hydrogen peroxide dipping, the characteristics changes of the PAN-ACF before and after modification such as kinds of surface functional groups, amounts of oxygen function groups, surface microstructure and specific surface were analyzed by FT-IR, Boehm.

采用热氧化、硝酸浸渍、过氧化氢浸渍等方法对聚丙烯腈基活性炭纤维进行改性处理，使用FT-IR、Boehm滴定法、SEM、BET等分析技术表征了改性前后PAN-ACF表面官能团种类、含氧基团数量、表面微观结构及比表面积等表面特性。

When ethanol goes into the red blood cells, osmotic pressure changing causes the cell vertices moving to the center, and double-concave disc surface will be the spherical one. It results in the red blood cell volume larger and surface area smaller, causes the ratio of the surface area and volume significantly decrease, and the resistance tensile capacity of red blood cells reduced.

分析认为乙醇进入红细胞后，由于渗透压的变化将使细胞顶点向中心移动，双凹形的圆盘曲面将向球形细胞转变，导致红细胞体积变大和表面积的减少，引起红细胞表面积和容积的比值显著变小，红细胞的抗张能力降低。

Surface aluminates a re formed on the surface of the catalysts and the presence of Ni favorites the f ormation of surface aluminates.

Ni的存在会影响表面重构过程从而影响催化剂的活性和选择性，在所研究的含Ni催化剂上，CO2加氢反应经历了生成双齿表面吸附中间物的过程。

Complex surface structures stripes or bandings were found in those of A. dichotoma, but less in P. inclinatus. The trabeculae consisted of three parts the surface part, the cylindrical layer and the central part. The surface and the central part were mainly protein substances which could be dissolved by KOH.

其中心部主要是溶解于KOH溶液的物质蛋白一类的物质，环状纤维层中的几丁质纤维，在层和层之间相互不同的方向排列着，并各自与前翅的上下层中的几丁质纤维连续地连接着2独角仙前翅小柱的表面有复杂的纹样，而锹形虫的小柱表面只有非常简单的几乎没有纹样。

This article also described how to construct COONS surface and the summary of the construction of COONS surface.AS long as the master of the law,we can construct any COONS surface.

本文还阐述了如何构造COONS曲面片，并对COONS曲面片的构造规律进行了小结，只要掌握了规律，我们就可以构造任意阶的COONS曲面片。

In the CAGD field, Coons surface, B-spline surface and NURBS surface are mainly used.

唐泽圣 ，左万利，王拉柱Coons类曲面、B样条曲面和NURBS曲面是CAGD中主要的曲面表达形式。

The purpose of this study was to evaluate the shear bond strength between porcelain and electroformed copings after different surface treatments, with comparison of Ni-Cr alloys, to explore the bonding mechanism through observing the electroformed coping surface and interface of metal-ceramic by SEM and EDS analysis. It will provide the basis for clinical application. PartⅠEffects of different surface treatments on bond strength of porcelain fused to eleetroformed copings Materials and Methods: Forty-five cylindrical Ni-Cr alloys were made, and gold copings were deposited on them and divided into 5 groups randomly.

本实验拟测量金沉积基底几种不同表面处理后的金瓷剪切强度，并与Ni-Cr合金进行比较；通过对不同表面处理后的金沉积基底、金瓷界面进行扫描电镜观察和能谱分析，探讨不同表面处理对金沉积金瓷结合的影响，为金沉积烤瓷修复体的临床应用提供参考依据。

Surface Treatment and Finishing Technology, Raw materials and Equipment: Cleaning, Lapping, Deburring, Polishing and Burnishing, Sand blasting, Shot blasting, Ball blast, Conversion coatings, Electroplating, Thermal spray, Anti-Rust, Anti-Corrosion, Brush-plating, Vapor deposition, Hot dipping, Surface strengthening, Surface modification, Pre-treatment, Electrophoretic coatings, Anode oxidation, Plastic plating, Vacuum plating, Special coating, Depainting and Degreasing equipmentand Raw materials.

产品表面处理和精饰技术、原材料和设备：清洗、研磨、去毛刺、磨光和抛光、喷砂、喷丸、抛丸、转化膜、电镀、热喷涂、防锈、防腐蚀、刷镀、气象沉积、热浸镀、表面强化、表面改性、预处理、电泳涂装、阳极氧化、塑胶电镀、真空电镀、特种涂层、脱漆脱脂设备和原材料

G. it is up to 80 eV when the cluster plane is parallel to the surface. In addition, the impact induced adsorption of C〓 cages was studied in detail. After impacting, the normal incident C〓 was found to move laterally on the surface due to the anisotropic interaction between the dimerized surface and the cage. Finally, it resided on the top of a dimmer or in the trough, which are the energy favored adsorption sites.

在能量为10-20eV的C〓富勒烯表面吸附动力学过程的研究中，我们还发现表面结构的不对称性会引起团簇-表面相互作用的各向异性，从而导致入射团簇在表面上有与入射方向垂直的的横向运动，最后吸附在两个二聚体的中心点和谷点，这两个位置是能量最低的的吸附组态。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。