凹面

凹面、凹形结构、或凹线胆甾型液晶的平面结构

A concave surface , structure , or line . cholesteric planer texture

在薄板成形后的凹面分布的是较大的残余压应力，而凸面边缘存在较小的残余拉应力；

It was found that there was large residual compress stress on the concave surface of metal-sheet , but low residual tensile stress on the fringe of convex surface .

因为凹面与凸面没有磨损，螺母可以重复使用。

Because there is no abrasion between the concave and convex , the nut is reusable .

腔内光强增强型凹面光栅选支CO2激光器研究

Research on Intracavity Intensity Enhanced CO_2 Laser with Line Selected by Concave Grating

介绍了一种通过微细加工技术即二次X射线曝光制作凹面光栅的方法。

The technique of fabricating concave gratings in PMMA by double X-ray exposures is described .

双面弹力牛仔布的生产实践二次X射线曝光制作凹面光栅

Production Practice of Double - faced Stretch Denim Fabrication of Concave Grating by Double X - ray Lithography

修有凹面的掺Nd~（3+）：YAG激光棒的实验研究

An Experimental Study of Nd ~ ( 3 + ): YAG Laser Rod with Compensation of Thermal Lensing

用于MEMS结构的光刻胶牺牲层接触平坦化技术凹面光栅型解复用器的通带平坦化设计

Contact planarization of sacrificial photoresist for MEMS application Design of the concave grating based demultiplexer with a flattened spectral response

以ANSYS软件为平台，分别利用凹面砧、平砧两种砧型对方坯拔长进行三维数值模拟。

In this paper , based on ANSYS , the 3-Dimension stretching process for square blank using concave anvil and flat anvil is simulated separately .

Wright系统的核是一个标准化的4x12x24英寸的带凹面的混凝土或玻璃砖块。

At the core of Wright 's system was a standardized4x12x24-inch concrete or glass block with concave edges .

利用不同的掩模版，非常方便地制作了一维和二维凹面光栅，其粗糙度RMS值小于20nm。

The RMS value of the surface roughness is within 20 nm .

光电摄谱仪采用平场凹面光栅分光，线阵CCD接收，缩小了仪器体积。

Photoelectrical spectrograph device uses a flat-field concave grating as a beamsplitting device and the linear array CCD as detectors , thus , the volume of instrument was reduced .

它根据分光测色的原理，使用型凹面光栅作为其分光器件，石英光纤做测色探头，线阵CCD为探测器。

Based on the principle of color measure , the mini-spectrometer uses concave grating as its light splitter , fiber as its color picker and liner CCD as its detector .

我们开发出了一类具有高度凹面立方体（HCC）结构的铂纳米晶催化剂，具有{311}等高指数晶面和高氧还原活性。

Here we develop a class of Pt highly concave cubic ( HCC ) nanocrystals , which are enriched with high-index facets and exhibit high ORR activity .

利用PPTA薄膜在紫外光照下可硬化的特点，在薄膜上制备光栅进行研究并通过双光束干涉曝光法，制备了凹面光栅。

The concave diffraction grating on the film of PPTA is prepared by the double beam interference illumination .

根据这个数学模型，借助于有限元软件MARC，分别对凹面型、平面型水润滑橡胶轴承进行了弹流润滑分析。

According to this model , the EHL analysis of the concave-type and flat-type bearing are carried out in aid of a finite element software MARC .

实验选用光谱波长范围为200nm~600nm的凹面光栅光谱仪、2048元焦平面的CCD器件和低压汞灯，分别对铜、铝、镁、钙、硅等5种样品进行了激光诱导击穿光谱试验；

A concave grating spectrometer , a 2048 elements CCD and a low voltage mercury lamp were used to carry out laser induced breakthrough spectrum test with 5 samples , such as Cu , Al , Mg , Ca and Si .

本文报道了波导CO2激光器的一种选择横模的方法，该器件采用了大孔径波导和近场非匹配凹面镜，可得较高输出功率的基模激光。

In this Paper , a method to select transverse mode of a CO2 waveguide laser is reported . By using the waveguide with a big bore and non-matching concave mirror in near field , high output power and fundamental mode laser can be achieved .

该激光器由带单模尾纤输出的半导体激光器、光纤偏振控制器、PLZT电光陶瓷偏转器和输出凹面镜等组成。

The laser consists of a semiconductor laser with single mode fiber coupled output , polarization controller , PLZT electro-optic ceramic deflector , and output concave mirror .

本文定义粒子凸闭包体积与该粒子的实际体积之差再比上该粒子凸闭包体积为体积凹面度（体凹度，Concavity，v）；

Concavity , v was defined as the ratio of the difference of volume between the convex hull of particle and the particle its self to the volume of the convex hull of the particle .

建立医用硬性内窥镜畸变的评定基础和方法，用视轴对称的球面Z视场为模型来模拟体腔凹面特征，以建立内窥镜物像共轭的分析基础；

To set up the evaluation base and method of medical rigid endoscope distortion , by using optical axis symmetrical spherical Z view field as the model to simulate concave characteristics of body cavity , the analysis base of endoscope object-image conjugation is established .

提出一种利用ZEMAX软件设计、分析评价平场全息凹面光栅的方法。

A method which uses ZEMAX software to design , analyse and evaluate flat field holographic concave grating is given in the paper .

该系统采用一种全息凹面光栅作为分光成像元件，以线阵CMOS图像传感器作为探测元件，实现400800nm波长范围内的光谱检测。

A holographic concave grating is adopted as dispersing and imaging element , which can easily realize the flat spectrum plane . The detecting element is linear CMOS image sensor . The spectrum range of this micro spectrometer is from 400 nm to 800 nm .

模拟计算表明，与普通平砧和普通V砧相比，凹面平砧和凹面V砧拔长能够增大心部的变形量，改善心部的应力状态，并明显减小压下率。

Results show that compare with cogging process using common flat anvil and common V anvil , using concave flat anvil and concave V anvil can increase the deformation at the center of the billet > improve the stress state of the center part and greatly decrease the reduction .

介绍一种从罗兰圆结构出发，利用ZEMAX光学软件设计平场全息凹面光栅的方法。

A method which is based on Rowland mount and uses ZEMAX software to design flat field holographic concave grating is given in this article .

凹面全反镜失调角为0.4mrad时，激光器输出光斑位移14mm。

As the misalignment angle of the concave mirror is 0.4 mrad , the displacement of the near-field laser spot figures is 14 mm .

采用新型的全息平场凹面光栅作为分光元件，并引入多通道光电探测器件CCD进行光谱信号探测，为光谱反射率的测量准备了物质条件；采用微型计算机控制，达到自动化测量。

In this system , we employed a newly developed holographic filed concave grating as splitting beams element , as well as multi-channel photodetector - CCD ( charge coupled devices ) as spectrum detection . these all solidified the foundation of measurement ; microcomputer control make the system automatic .

基于全息凹面光栅理论和ZEMAX软件，设计了一种用于平场光谱仪的消象差平场非球面全息凹面光栅。

Based on the holographic concave grating theory and ZEMAX software , an aberration-corrected flat-field holographic concave grating on aspherical surface for a flat-field spectrograph is designed .

弹流润滑计算初步表明，在轻载（0.1MPa）下，凹面型轴承中不可能存在完全流体膜将轴颈与轴承全部分隔开，但可能形成宏观尺度的流体膜。

EHL analysis reveals that at low load , for concave-type bearing , it is impossible to form a hydrodynamic water film to separate the shaft and the rubber completely .

由双面增透的凸透镜和凹面全反镜组成的猫眼逆反器（CER），替代传统平凹腔中的平面腔镜可构成一具有较佳失调特性的猫眼腔（CEC）。

Replacing the plane cavity mirror in a traditional plane-concave cavity by a cat ′ s eye retroreflector ( CER ), which consists of a convex lens and a concave reflective mirror , the cavity forms a cat ′ s eye cavity ( CEC ) with a higher misalignment tolerance .