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The test results show that both the permeability of sandstone and that of granite with a single fracture declines with the increasing effective pressure, following the law of exponential decay. The permeability sensitivity of granite with a single fracture to effective stress is much stronger than that of sandstone, but the recovery capability of permeability of sandstone is more stronger than that of granite with a single fracture.

试验结果表明，在围压升降过程中，砂岩和单裂隙花岗岩的渗透率均随有效应力的增加呈负指数规律减小，但单裂隙花岗岩的渗透率对有效应力的敏感程度远大于砂岩，而砂岩渗透率的恢复程度则远大于单裂隙花岗岩。

So, in chapter 2 we discussed the basic principle of AFM based single molecule force spectroscopy, including the immobilization method of the samples to be investigated, the experimental control of single molecule detection and the standard for the distinguishment of single molecule detection.

因此，在论文的第二章专门讨论了基于AFM的单分子力谱仪的工作原理。

The making process includes: setting insulating solid film on one horizontal rotating carrier with particle detecting unit and etching with single particle beam in the incident angle of 9.6-90 deg to penetrate the film, shifting the film relatively to the single particle beam and etching for the next time, and so on until the film is rotated by one turn to obtain truncated cone shaped, double turned truncated cone shaped or cylindrical single nanometer hole.

本发明将固体绝缘薄膜置于带有粒子检测装置的一个可水平旋转的载体上，用单粒子束刻蚀该薄膜，单粒子束入射角大于等于9.6°、小于等于90°，并且单粒子束在该薄膜底部、顶部、或二者之间与薄膜旋转轴交叉，待单粒子束完全穿透该薄膜后，固体绝缘薄膜底部的粒子监测器反馈使该薄膜被穿透处与单粒子束相对移动1荆再刻蚀，如此反复，直至固体绝缘薄膜旋转一周，获得圆台形、双倒圆台形或圆筒形的单纳米孔。

In this thesis, terahertz transmission properties through three kinds of simple sub-wavelength metallic structures, including single sub-wavelength metallic circular hole, single sub-wavelength metallic slit and double sub-wavelength metallic slits, are experimentally investigated in the far field by using our own THz time-domain spectroscopy system and are theoretically analyzed. Conclusions are obtained as follows:(1) a single sub-wavelength metallic circular hole exhibits the same terahertz transmission properties as that of round metallic waveguide, which are influenced by the diameter of circular hole and the thickness of metal foil.

本文利用本实验室搭建的太赫兹时域光谱系统研究了太赫兹波段金属亚波长结构的透射特性，其中对三类金属亚波长简单结构即单个金属亚波长圆孔、单个金属亚波长狭缝和金属亚波长双缝的太赫兹透射现象进行了远场探测以及理论上的分析，得到了以下一些成果：(1)太赫兹波通过单个金属亚波长圆孔的传播现象与圆形金属波导具有相同的规律，其特性受到圆孔直径和金属箔厚度的影响。

In order to solve the problem,We proposed a simple formula for computing paraxial travel time of single-way wave operator. The formula is based on the forward and inverse transform between time-space domain to frequency-wavenumber domain and from vector field to exponential manifold. The travel time are expressed as polynomials of the horizontal offset between the two points, and the single-square-root operator in frequency-wavenumber domain are expressed as polynomials of wavenumber. Coefficients of travel time polynomials and that of single-square-root operator are related each other and calculated by Lie algebraic integrand, exponential map and the saddle-point method.

针对此，基于时间空间域到频率波数域和向量场到指数流形上的正反变换，提出了计算单程波算子旁轴走时的简便公式，将走时表示成空间变量(地面点到地下相点的水平距离)的多项式，将频率波数域单平方根算子表示成波数的多项式，运用Lie代数积分、指数映射和鞍点法将走时多项式的系数与单平方根算子的系数联系起来，运用单平方根算子的系数计算走时多项式的系数。

The web paper is inputted by Mill Roll Stand, and after heated and regulating the moisture by the pre-heater, the paper is put into the Single Facer for shaping and then conglutinating with another top paper to form a single corrugated board. The single corrugated board is then transmitted by the overhead bridge conveyor to multiple heater to be reheated, after this the paper is to double facer for being heated and jointed, herein a continuous corrugated board is formed.

由原纸架输入卷形原纸，经过热缸机加热及调节湿度，进入单面瓦楞机，经过瓦楞机的滚轧成形，与另一面纸粘合成单面瓦楞纸，由天桥架传送，经多重预热器再次加热，经上浆机粘糊再至双面机加热贴合，此时连续的瓦楞纸板即已成形。

The results showed: no significant difference was found between the results of single tube quantitative assay method and multiple tube fermentation technique;single tube quantitative assay method showed better accurateness,precision,and reproducibility than multiple tube fermentation technique;single tube quantitative assay method was quicker and more economical.

结果表明：MUG单管定量检测法与大肠埃希氏菌多管发酵法对菌悬液、天然海水、水产品的检测结果没有统计学差异；MUG单管定量检测法检测数据的精确性高于大肠埃希氏菌多管发酵法，而且更为快速、经济。

The article analyses the general situation of topology technology for single-phase PFC,discusses the development of topology technology for single-phase PFC from characteristic aspect and gives out the trend of development of topology technology for single-phase PFC in future.

文章分析了单相功率因数校正电路技术的概况，从实现的方式及其特点等方面较系统地论述了单相有源功率因数校正电路拓扑技术近期的发展，并指出了今后单相功率因数校正电路技术的发展趋势。

Let me say at the outset that this proposal is made with no single region, no single class, no single racial or religious group in mind.

请允许我在开头便说明，这一建议的提出不带有对任何个地区、阶级、种族或教派的考虑。

Based on the logic dependent relation and first-order logic, AND/OR graphs of single target with unit agent, and single target with multi-agent, joint targets with multi-agent were gotten respectively. As an example, single target with multi-agent was used to illustrate AO(superscript *) searching algorithm of logic dependent relations.

在分析逻辑依赖关系与一阶谓词表示法基础上，分别给出了单agent单目标、多agent单目标、多agent联合目标的逻辑依赖关系的与／或图表达方法，并应用与／或图的AO搜索算法，以多agent单目标情形为例，演示多agent系统中逻辑依赖关系的计算过程。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。