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Anastigmatic lens: photographic lens corrected for astigmatism as well as other distortions.

消像透镜:消除纵横像和其他畸变的摄影用透镜。

In addition, the business card printing and membership card-making process, you must master scraping knife and the angle between the plate and pressure to reduce the scraping knife on the printing plate relative friction.

另外,在制卡和会员卡制息历程洋,务必把持好刮墨刀与印版之间的角量和不张力,以加重刮墨刀不印版的相不摩擦力。

By correcting noise variance matrix of system state of constant turn model wit h maneuvering frequency coefficient and angular accelerˉ ation variance, the turning model set with different angular was d esigned, the model probability matrix was given. An interactive multiple model algorithms with adaptiveˉturning model w ere built.

通过机动频率系数和角加速度方修正常速转弯模型的系统状态噪声方矩阵,设计了不同角速率的转弯模型集,给出了相应模型的状态转移概率,建立了一种自适应转弯模型的交互多模型算法。

In turning point and anticlinal p1unging portion -microfracture development and low stress area,it is favorable to prospect a coalbed gas.

但由于煤的变质程度较低,煤质较,加上逆掩断裂的挤压作用,使地层有效地应力较高、造成煤储层渗透性较;再者,煤储层的含气饱和度较低,开煤层气的产出较为不利;但在构造的转折端及背科的倾伏部位,存在着微裂隙较发育的地应力低带,有希望找到煤层气勘探开发的有利区。

To against an afterload of 1.96kPa(200mmH_2O), measure two groups of direct flow and antidromic flow, both begin with the pressure difference of 0mmH_2O, add more 20 mmH_2O every time ,measure three tines at each pressure difference, get the average value at each pressure difference.

测试分为顺向和逆向两组,在克服后负荷压强为1.96kPa(200mmH_2O)情况下,分别从0mmH_2O压力开始,每隔20mmH_2O递增,测量通过静脉外间接人造瓣膜的生理盐水流量,每个压力值测量3次,取平均值。

In chapter 3, the paper proposed a new kind of preference relation, i.e. distance preference relation; followed this, a scale was introduced for constructing antisymmetric matrix, and consistency of the matrix was defined, three methods for computing priority vector were studied; At the end, two examples were used to demonstrate the application of the new method,and they showed that the introduction of antisymmetric matrix to AHP is effective and valuable.

本文首先对Saaty AHP的几种常见标度进行了比较分析,然后对正互反判断矩阵及模糊互补判断矩阵的权重计算方法进行了归纳和总结;最后,本文提出了一种新的偏好关系,即基于""的偏好关系,从而将反对称矩阵引入层次分析法,接着对新型偏好关系下判断矩阵的构造、一致性的定义与性质以及权重的计算方法做了初步的研究,最后用算例说明了新方法的应用,并做了相应的比较分析,结果表明采用基于""的偏好关系构造反对称矩阵拓展了AHP的应用范围,有一定的理论和应用价值。

This dissertation deals with theoretical and practical aspects of antithetic and common random numbers for variance reduction in simulation of stochastic systems.

本文对复杂系统仿真中的公共随机数和对偶变量法进行了系统的论述,给出了各种条件下实现方衰减的理论和实验结果,给出了估计一对具有独立和相关分量的向量函数的响应和期望的最优化证明,且推导出在弱条件下的方衰减。

Aplanatic: Of or relating to optical systems that correct for spherical aberration.

等光程的,透镜消球的:矫正球面像的光学系统或与之有关的

If the system is stable and running, import and export pressure approximate to set the differential pressure ΔP.

若系统稳定运行,进、出口压ΔP近似为设定压

This section presents two kinds of characteristic schemes, one is the natural use of the usual backward Euler characteristic difference scheme ( [60] ) onto the triangular mesh, the other replaces the backward Euler's method by modified Euler formula to approximate the characteristic differential equation, so that the discretization for characteristic curve can get up to second order accuracy.

本节给出了两种三角形网格上的特征分格式,第一种是通常的向后Euler型特征分格式([60])在三角形网格上的自然运用,第二种采用§3.3、§3.4的离散思想,使用改进的Euler公式代替向后Euler公式来近似特征微分方程,使其对特征线的离散达到了二阶精度。

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推荐网络例句

I didn't watch TV last night, because it .

昨晚我没有看电视,因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。

I'm running my simile to an extreme.

我比喻得过头了。