可变化

Used traditional measurement equipment and a new method-optimal approximation between measured and numerical calculation values, the coefficient of thermal conductivity of cornea was measured. It can be expressed by the equation of λ=0.10395+2. 75156×10〓t.

本文在不改变现有传统测定设备的前提下，采用一种新方法—通过数值计算角膜表面温度变化规律与实测值之间的最佳逼近，确定物体变物性导热系数的参数估算方法，对角膜的导热系数进行了测定，在角膜冻干的温度区间内，角膜的导热系数可近似地表示为λ=0.10395+2.75156×〓。

For the characteristic of the ring permanent magnet torque motor used in direct drive numerical control round table suffering from the effect of load disturbances and parameters variations, a multi-objective mixed H2/H∞ static output feedback controller, which makes all poles of the closed-loop system be located within a prescribed linear matrix inequality region D to achieve pole placement, is designed based on LMI.

针对直接驱动数控转台用环形永磁力矩电机易受负载扰动及自身参数变化影响的特点，文中基于线性矩阵不等式(linear matrix inequality， LMI)，设计了一个多目标混合H2/H￥静态输出反馈控制器，该控制器可使闭环系统的极点均落在预先选定的线性矩阵不等式区域D内来实现极点配置。

Experts examine growth patterns found within available Plio-Pleistocene hominid samples, and analyse variation in ontogenetic patterns and rates of development in recent modern humans in order to provide a comparative context for fossil hominid studies.

发展在(剑桥用生物 Living beings 学 Biological和进化的人类学学习)的均匀的属内的图案专家检查发展模式在可得到的Plio-Pleistocene内找到人科的样品，并且为了为守旧的人提供比较上下文，分析在在新近的现代人方面的发展的ontogenetic 图案和比率方面的变化人科的研究。

The conditions of rabbits′ retina were observed under ophthalmoscope every day after injection.

结论微量的PFD存在于眼内，视网膜可出现超微结构的病理改变，但无显微结构的变化，在宏观上也无任何改变。

The competition environment it faced is becoming more and more complex, the opposability of competition is becoming more and more strong, the style of competition is changing more and more quickly, and it is becoming more and more difficult to keep its competition advantage.

企业感觉到面临的竞争环境越来越复杂，竞争的对抗性越来越强，竞争方式的变化越来越快，竞争优势的可保持性越来越难。

Through S-wave polarization scanning mode of ultrasonic impulse testing, rock samples with three different properties are measured to evaluate the variation of S-wave velocity in three perpendicular coordinates. By analyzing S-wave splitting of three directions and polarization of the maximum or minimum speed S-wave amplitudes, we think that the velocity orthotropy and fracture orientation observed in the grain sandstones and crack marble samples can be estimated in terms of the polarization and velocity of S-wave. Also, perpendicularity characteristics on the two types of rocks can attribute to the bedding and structure of rocks (directional grains or crystallize).

在实验室通过选择了三种不同岩性的岩石，采用超声脉冲测试方法中的横波偏振扫描方式，观测了岩石样品三个坐标方向上的横波速度变化，通过分析三个传播方向上出现横波分裂的差异，以及出现最大或最小快慢横波振幅的偏振方向发现，可从横波偏振方向和速度值判断出纹理砂岩和裂隙大理岩样品存在不同程度的速度正交各向异性和裂隙方向等特征，认为这两种岩石的正交特性的原因是岩石的层理或裂隙与岩石本身的结构构成的。

Therefore, this paper seeks to introduce to students how to analyze and solve these problems, how to master the drawing techniques of Oscillogram based on the real understanding of JK Trigger s principle, and thus help cultivate their flexible skills in problem - solving and a practical attitude towards study.

由于触发器具备这样的特性，所以作波形图时要考虑各种原来的输人状态及其变化情况。 JK角虫发器是触发器中的一类重要触发器，它可分为主从型JK触发器和边沿型JK触发器等。

As soon as you know the pathological change and imaging performance of osteoid osteoma,the diagnoses will be quite explicit and misdiagnoses rate will be reduce.

了解骨样骨瘤的病理变化和影像学表现，诊断就比较明确，可减少误诊发生。

Conditions of the seepage and stress is a dynamic process, and also shows its interaction and interdependence. Owing to the closure of the fracture, the hydraulic gradient and the permeability pressure of the fracture turn large, and also promote the expansion of water cracks, and fissures connectivity increasing. The increase of the crack opening width will result in the increase of the infiltration capacity and seepage flow, and the reduction of seepage pressure. Because of the dynamic dependence of the fracture aperture, pressure and seepage, under certain conditions, changes in fracture aperture can lead to the formation of local water-passage, and the local emission of high pressure water, and thus promotes the formation of the sudden outgush disasters.

结果表明：洞室开挖完成后，在围岩渗流与应力耦合作用下，围岩中裂隙隙宽、裂隙中水压及其渗透流量的变化是一个动态过程，且相互作用与相互依赖；裂隙的闭合使得结构面水力梯度变大，作用在裂缝上的渗透压力增大，促进导水裂缝扩展，裂隙连通性增加；裂缝张开度增大，渗透能力增强，渗流量增大，其渗流压力相应降低；由于围岩中裂隙隙宽、压力和渗流量的动态依赖性，在一定条件下，裂隙隙宽的改变可导致局部水力通道的形成，高压水头从局部涌出，从而促进突水灾害的形成。

4A new method to detect the ovalbumin was set based on the PL change.

4基于CdTe量子点荧光光谱的变化建立了一种可用于卵清蛋白检测的新方法。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！