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Based on the method of minimum deviation angle, man can obtain the accuracy of measuring refractive index of glass at 3×10-6 with fine apparatus for measuring angle, but the classical princip1e formula quoted by these literatures have principle formula error about 4 ×10 - 4 order which lead to an erroneous measure result.

在这些测量折射率的方法中，最重要的是最小偏向用法和V棱镜法。推导最小偏向角法和V棱镜法的所有文献都沿用经典的原理公式，而这些经典的原理公式没有考虑到空气实际折射率对被测试样折射率的影响。

Next, the Tyler frequency is determined by which the tilt cut-off residual error of a diffraction angle is applied.

然后以一个衍射角为截止均方根残差，根据实际测得的湍流功率谱确定Tyler频率。

By definition,for targets located in a spherically stratified lower atmosphere or ionosphere,this paper derives the residual error models［Formulae (14) and (20);(24) and (27);(57) and (59),(63) and (65)］ of elevation angle refraction errors,range refraction errors and range rate refraction errors corresponding to monopulse radar and trilateration radar.

提要 本文从定义出发，推导出目标在球面分层低层大气或电离层内仰角折射误差、距离折射误差和相应于单脉冲雷达与三站雷达的距离变化率折射误差的残差模型［式(14)与(20)；(24)与(27)；(57)与(59)，(63)与(65)］。

A tapered incident wave is used to reduce the truncated error. The angular correlation function is calculated by Monte-Carlo generated rough surface, the enhancement on nonmemory line of the ACF can be used to detection a target placed over or under the rough surface.

在散射目标存在时，目标与粗糙面的复合多次散射场的角相关函数，在不满足记忆线条件下也有普遍较高的角相关函数值，即在非记忆线上的增强可以用于检测粗糙面上方、下方的散射目标。

With the combination of lighting, cooling and heating under daylighting, the study on the effect of the key characteristic parameters on total energy consumption is provided. The validation of the comparability of daylight distribution for building antetype and model is made through theoretical analysis and simulating calculation in the thesis. Due to the variable sky condition, daylighting factor is used for experimental validation instead of illuminance. The error analysis of several testing methods used in the experiment is conducted, followed by the experimental validation of the effect of WWR, sill and transmittance on daylighting factor distribution.

基于天空状态的多变性，提出用天然采光因数替代照度进行实验验证，对实验中的几种测试方法进行了误差分析，并通过实验验证了窗墙比、窗台高和透光率对天然采光因数分布的影响。4 为了更直观地分析各参数对照明节电的影响，提出了"特征点"、"特征线"和"特征距离"等概念；分析了天然采光下的照明节能状况，综合考虑照明、采暖和空调能耗，计算分析了几个主要特性参数对总能耗的影响。

The apriori and aposteriori H〓-optimal filtering question can be solved directly. L〓 Apriori and aposteriori filtering with an H〓 error bound can be solved by semidefinite programming. Robust H〓 apriori filtering and robust apriori L〓 filtering in discrete-time system are subject to a nonconvex constraint.

对这些滤波问题解法的改进同连续系统下的情况基本类似，对确定性系统的H〓验前滤波和验后滤波，本文解法可直接得出最优滤波问题的解；对H〓约束下的L〓验前滤波及验后滤波，其解可归结为一凸优化问题；但不确定性系统H〓验前滤波和鲁棒L〓验前滤波的LMI解法中有了非凸约束，因此要用迭代法求解。

There are some errors in measuring blood pressure by sphygmomanometer method. Apparent error is found in systolic pressure in patients with hypertension, but not in diastolic pressure.

用汞柱式血压计测量肱动脉血压的值与实际值有一定差异，对于高血压病人，收缩压误差较大，而舒张压则较准确；对于正常人收缩压易低估，舒张压易高估。

It shows that the optimal control given by Yoshisuke Misaka is approximate. Error of the approximation and scope of application of the approximate algorithm are discussed.

本文用极大值原理对文献[1]的带钢轧机厚度的前馈最优控制算式进行了推导，证明了美坂佳助所给出的前馈最优控制是近似的，讨论了这一近似的影响及其适用范围。

In this method,the main control law is approximated by an adaptive fuzzy system directly;the approximation error and disturbing torqu...

在控制律的设计中，将自适应模糊系统直接用作系统的主控制律，利用扩张状态观测器对模糊系统的逼近误差和内外干扰力矩进行观测并予以实时补偿。仿真结果表明了方法的有效性。

This class, taught by the guest speaker, is devoted to the study of the approximation error, and some of its general properties.

这堂课将由授课的特别来宾讲解近似误差原理及其一般特性。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。