层的

In high-impedance current-input inverting configurations, where a length of shielded wire is used to guard the lead from the current source to the amplifier's inverting input, the guard should either be driven by a buffer at the same potential as the non-inverting input, or be tied directly to the non-inverting input, with a second outer shield connected to the signal's reference point.

如果将运放接成反相放大器的形式，并且在信号源与运放反相端之间用一段带有屏蔽层的导线来充当的防护罩，那么对防护罩的处理有两种选择：要么用一个缓冲跟随器来驱动，跟随器输出端与运放同相端电位相等，而且除跟随器外，防护罩不与其他点接触；要么将防护罩直接接到运放的同相端，然后在其外面加一个屏蔽层，并且将屏蔽层连接到信号的参考电位。

These results offer new insight into the study of the nacre formation.

对同一三角帆蚌贝壳珍珠层，文石晶体的这两种择优取向的程度随壳结构位置的变化而变化，反映了三角帆蚌珍珠层结构的不均匀性，为研究珍珠层的成因提供了新的思路。

The surface morphology of the nacreous layer on different parts of Pteria Penguin and blister pearl from Sanya, Hainan Province, are observed directly by using environmental scanning electron microscope.

研究结果表明，该地区海水成因的珍珠层中有机质薄膜对珍珠层的螺旋生长成核和结晶取向起到了严格的调控作用，它为文石或方解石晶体的生长提供一个有效的定位或成核中心；有机质与文石微晶在时间和空间上的螺旋交互生长具有周期性，从而产生珍珠层表面的这种结构形态。

The parameters are :① reservoir effective thickness;② reservoir porosity;③ reservoir volume efficiency;④ fair pay ′ s reservoir volume efficiency;⑤ distance to the fault;⑥ reciprocal of the square root of the distance to the fault ）;⑦ apparent fold strength coefficient;⑧ maximum principal curvature of structural plane;⑨ transversal section line curvature;and ⑩ longitudinal section line curvature.

摘 要 介绍了气井产能的确定方法及地质参数的选择与计算方法：采用初始二项式无阻流量、稳定产量及初始采气指数作为气井产能评价的指标；10项参数分别是①储层有效厚度；②储层孔隙度；③储容系数；④好储层的储容系数；⑤与断层的距离；⑥与断层距离开方的倒数；⑦视褶皱强度系数；⑧构造面最大主曲率；⑨横向剖面线曲率；⑩纵向剖面线曲率。

This paper proposed a new QoS control method of voice service. On one hand, it uses adaptive transmission strategy, such as AMC, power control, sub-carrier allocation and antenna selection, to realize the reliable transmission in physical layer. On the other hand, it adopts ARQ and RRM in the data link layer to control the time delay and jitter of voice services.

本文提出的语音业务QoS的控制方法，一方面通过物理层的自适应传输策略，如调制编码方式、功率控制、子载波分配和天线选择等相关技术来实现物理层的可靠传输；另一方面，通过链路层的ARQ技术和无线资源管理策略来控制语音业务的时延及时延抖动。

We got the simple and high accurate eigenvalue equations and cutoff frequency formulae of all propagation modes. Second, to the optical fiber with homogeneous cladding, we defined the "permittivity ratio", and we got the simple and high accurate connection of cutoff frequency to the ratio. Third, to the fiber with inhomogeneous cladding, we analyzed the dispersive and power-frequency characteristics.

第二，对于具有各向同性包层的弱渐变光纤，引入了介电比，找到了精度高且形式简洁的截止频率对折射率参数的依赖关系；第三，对于具有各向异性包层的弱渐变光纤，首次通过包层的轴向与横向的介电常数比分析了该类光纤的色散和功率特性。

Based on limiting the tensile strain at the bottom of the asphalt layer and the vertical compressive strain at the top of the subgrade, the suitability of layer thickness is checked by two criteria. One is controlling the maximum surface deflection under the design load, and the other is controlling the modulus ratio between adjacent unbound aggregate base and subbase layer.

该方法基于限制沥青层底的拉应变和路基顶面的压应变，采用两个准则来校核所设计的沥青层厚度的适宜性：一是控制设计荷载作用下的最大路表弯沉；二是控制相邻两个无结合料处治的集料层的模量比。

The problem that noxious chrome of sexavalence and trivalence is present in the galvanizing coat and passivating solution of the prior art is solved substantially by the passivating solution of the present invention.

本发明提供的无铬钝化液可以从根本上解决了现有的产品镀锌层及钝化液中含有有毒有害的六价铬和三价铬元素的问题，并可真正替代现有的含有六价铬和三价铬的铬酸盐钝化液，实现对电镀锌层和热镀锌层的钝化。

In order to clearly recognize the geophysical response of carbonate reservoir,based on preliminary recognition of Ordovician carbonate reservoir under the basal surface in Tahe oilfield,some regular vug models and random arranged vug models were designed and built. The variable-grid finite difference method was used to simulate the seismic wave propagation in these models. Then,the seismic records of the models were analyzed and the effect to seismic reflections caused by vug is studied. The impact rule of regular vug scale and random arranged vug density on seismic attributes was obtained.

为了研究碳酸盐岩储层的地球物理响应特征，在对塔河油田奥陶系风化面下碳酸盐岩储层初步认识的基础上，利用随机介质建模技术，设计并建立了一系列碳酸盐岩储层规则孔洞和随机孔洞模型，并应用变网格有限差分法对地震波在孔洞模型中的传播进行了正演计算，对模拟得到的地震属性进行了分析，研究了孔洞对地震反射特征的影响，获得了规则孔洞尺度以及随机排列孔洞密度对地震属性的影响规律。

The results show that the displacement of rock body may change direction in regulative distortion phase, the displacement presents periodicity according to the storing and the destroy of the energy of rock distortion, the quantity of displacement of the top is more than that of the bottom, the quantity of displacement and the destroy periodicity of the reinforced terrane infused plasm are less than that of the irreinforced terrane infused plasm, the convergence of bordroom is the displacement of certain thickness wall rock of surface layer.

得出：岩体在调整变形阶段可能改变位移方向，岩石破坏呈现周期性，洞室边墙上部比边墙脚位移大；注浆加固后的岩层比未加固岩层的位移小，破坏周期短；洞室的收敛只是表层一定厚度的围岩位移的外在表现，收敛层外岩体向山体方向移动；加固破碎围岩的关键技术是按照工程所处应力场，充分考虑加固层周围地质构造影响，设计加固层的厚度和加固闭合拱。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。