查询词典 developable surface

Equipotential surface: The continuous surface which is everywhere perpendicular to lines of force.

等位面：处处与力线垂直的连续面层。

Geoid is the equipotential surface that would be assumed by the sea surface in the absence of tides, water density variations, currents and atmospheric effects.

大地水准面指与平均海表面最接近的地球等势面，它反映了地球内部质量和密度分布的不均匀特性。

Gravity such as the surface phase known as the equipotential surface.

重力位相等的面称为等位面。

In this paper, the variation of Roche's critical equipotential surface (namely the surface of zero velocity corresponding to the inner Lagrangian point, the constant of Jacohian integral being C = C2) in some close binary systems is discussed.

本文具体讨论了密近双星系统动力演化中洛希临界等位面(即过第二直线秤动点的零速度面)所涉及到的零速度面的变化问题。

The sloping plate can provide sufficiently the under-cooling for nucleation and lay a foundation for heterogeneous nucleation to form lots of nuclei of crystal internally and on the sloping plate surface, thus causing the melt to nucleates eruptively. Under the action of both metal flow and vibration, the nuclei formed on the sloping plate surface can move freely and disperse into the melt, and they are able to maintain the direct growth in spherical shape in the homogeneous composition and temperature fields.

倾斜板为形核提供足够大的过冷度和异质形核基础，大量晶核在斜板表面和内部形成，使熔体爆发形核，在流动和振动作用下斜板表面形成的晶核游离，弥散到熔体内部，晶核在均匀的成分场与温度场条件下，可以保持直接球状生长。

The surface structure and component change are analyzed by SEM, ESCA and contact angle instruments to investigate the modification on polymer surface.

配合SEM、ESCA、接触角等仪器的分析、观测高分子表面构造的变化及成分的变异，以研究高分子表面的改质。

Land surface emissivity is an essential parameter for land surface temperature retrieval from thermal remote sensing data.

地表比辐射率是用热红外波段遥感数据反演地表温度的关键参数。

It was discovered that when ethyl nitrite was introduced to the surface of catalyst, Pd ethoxyl compound was formed and simultaneously the active site Pd was transferred to the surface of catalysts with the change from Pd〓 to Pd〓. Then lined-adsorbed CO inserted into Pd alkoxyl compound to form the carboethoxypalladium complex.

研究结果表明，在CO偶联反应过程中，亚硝酸乙酯在催化剂上吸附，生成钯乙氧基络合物，同时将催化剂表面上的活性中心氧化，由Pd〓→Pd〓，并向催化剂表面上迁移。

Comparing with the two methods, spraying method will make carbon nanotubes well dispersed in the plastic surface and the conductive surface of the obtained materials will be evener and more stable.

结果表明：两种方法制成的抗静电覆膜都能大大降低塑料的表面电阻，但喷涂法更能使碳纳米管在塑料表面均匀分散，从而使塑料表面抗静电性能更加稳定。

From this equation we obtain the evolution equation of the image surface using the connection of the surface evolution and its level lines.

由这个演化方程，利用曲面演化和其水平线演化之间的关系，得到关于图像曲面的演化方程。

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。