查询词典 developable surface

Surface deformation can be divided into two parts:surface dilatation and the surface shear.

表面形变可分为两部分：表面膨胀和表面切变。

On the basis of the idea of partition of unity, a discontinuous function and the two-dimensional asymptotic crack-tip displacement fields are added to the displacement interpolation formula to account for discontinuity of the contact surface and stress singularity near the contact surface tip respectively. Governing equations are deduced by virtual work principle and the integral of the discontinuous functions are calculated by Gauss integral through sub-elements cut by discontinuous surface.

该方法基于单位分解思想，在位移插值形式中引入不连续函数和裂尖渐近位移场函数分别反映接触面的不连续性和接触面端点的奇异性；根据虚功原理建立有限元支配方程，接触面不连续函数积分采用分区高斯积分的方法。

Furthermore, the compression-sensitivity of CFRC, which suffers three-direction-pressure is studied.Thirdly, present method of carbon fiber treatment is summarized. Treat the surface of carbon fiber with GLBE, the influence of surface-treatment of carbon fiber on the distribution and compression-sensitivity of CFRC was studied. According to the contrast of the compression-sensitivity before and after surface treatment, as well as the contrast of the distribution of carbon fiber in cement mortar, it is found that GLBE is able to improve the dispersiveness of carbon fiber.

再次，总结现有碳纤维的表面处理方法，选用液相气相双效法对纤维进行表面处理，并研究碳纤维的表面处理对纤维分散性和CFRC的压敏性的影响，通过对表面处理前后试块的压敏性和碳纤维在水泥浆体中的分散性的对比，发现碳纤维的液相气相双效法表面处理可以改善纤维的分散性，而且在循环荷载作用下还发现用这种表面处理的纤维制成的碳纤维混凝土对应变变化感应的稳定性和重复性得到有效提高。

For PVC, sayqat-Lu's fen, polyester, nylon, and so on film, because of their larger surface tension of the usual business card printing and membership card product requirements can be direct business card printing and membership card production (the actual requirements of the customers because in recent years, these materials in business card printing and membership card before or after a treatment), and is not handled by the polyolefin film surface tension is very low, such as pE is 31 Dyne, pp 29a Dyne, to business card printing and membership card-making should be increased to 38 Diane 2, this requires surface treatment on the film.

对于聚氯乙烯、赛璐玢、聚酯、尼龙等薄膜，因其表面张力较大，一般在制卡和会员卡制作产品要求不高时可直接制卡和会员卡制作（实际由于近年来客户要求的提高，这些材料在制卡和会员卡制作前也要经过处理），而未处理过的聚烯烃薄膜表面张力很低，如pE为31达因、pp为29达因，为了制卡和会员卡制作应将其提高到38达因2上，这就需要对薄膜进行表面处理。

In order to study the influence of defect on the surface acoustic wave,based on the theory of elastodynamics,the interaction between elastic surface acoustic waves and surface-breaking defect was simulated numerically by means of the finite element method.

为了分析材料表面缺陷对声表面波传播的影响，以弹性动力学理论为基础，采用有限元方法数值模拟了声表面波沿金属表面传播及其与表面缺陷的相互作用。

The results show that, after treated with microwave radiation, the surface free energy of the powder is enhanced from 39.6mJm^(-2) to 41.8mJm^(-2), This is mainly caused by the rearrangement of electric charges on the grain crystal surface, and this phenomenon is coincident with the theory of electron transition caused by energy band splitting of the grain crystal surface.

测定结果显示微波辐射后硫酸钙粉末的表面自由能得到提高，从39.6mJm^(-2)增加到41.8mJm^(-2)，其主要原因是使硫酸钙表面能的极性成分得到了较大的提高。这一结果归于微波幅射引起晶粒表面的电荷重排，与晶粒表面能带分裂引起的电子跃迁理论是相吻合的。

Permeable durability reinforcing agent used for concrete surface is a material sealing surface of concrete, and it can permeate into inner of concrete and fill or block the pores of concrete surface with dry crystal or emulsoid generated by reaction between it and chemical compound in concrete. It is important for the protection of concrete structure.

混凝土表面用渗透型耐久性增强剂是一种针对混凝土表面的渗透封闭型材料，其可渗入混凝土内部，并通过干燥结晶或与混凝土内部相关物质反应生成乳胶体将混凝土表层的孔隙填充、堵塞，对已有混凝土结构的防护具有重要意义。

The correlation of surface wettability with surface free energy and surface structure was also established.

并建立了医用不锈钢表面润湿性和表面自由能、表面结构之间的关系。

Furthermore, the reconstituted model of planar enveloping hourglass meshing surface is established in the light of the research of 3D surface reconstituted algorithm, and 3D error of the real planar enveloping hourglass meshing surface is derived accordingly.

利用计算机处理技术，提出了测头半径补偿的算法，进行了三维型面重构算法的研究，建立平面包络环面啮合型面重构模型，在此基础上获取了平面包络环面啮合型面三维误差。

When local hypergene life prosperous, deposition relative many; Otherwise when the life is in the murky time, relative small; When deposits the many stratum participation internal heat circulation, the surface activity is relatively violent, has the possibility to mean surface Earth life a disaster time, when deposits the few stratum participation internal heat circulation, the surface activity is relatively stable, has the possibility to mean the life an epacme, this is the Earth life periodicity deconstruction and the newborn basic internal reason is at.

当地表生命繁盛时，沉积就相对较多；反之当生命处于低迷时期时，就相对较小；当沉积较多的地层参与内热循环时，地表活动相对猛烈，就有可能意味着地表地球生命的一个灾难期，当沉积较少的地层参与内热循环时，地表活动相对稳定，就有可能意味着生命的一个繁盛期，这就是地球生命周期性毁灭与新生的根本内部原因所在。

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。