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By adding an equivalent harmonic impedance in the branch circuit of power grid, this HAPF could force all the harmonic currents flow into passive power filters, which resulting in eliminating harmonic contamination more effective. And using the capacitive feature of PPF in the fundamental frequency, this HAPF could compensate fixed-capacity reactive power without increasing APF's burden. Moreover, in order to decrease APF's cost, the fundamental voltage will largely be endured by capacitor in view of the series resonance circuit tuned at the fundamental frequency, so the APF just bears little harmonic voltages.

其基本工作原理是：有源部分等效于在电网支路中串联了一个谐波阻抗，该谐波阻抗对基波电流不起作用，而对谐波电流产生很大阻碍作用，迫使谐波电流流入无源滤波器，从而达到滤除谐波的目的；同时新型注入式混合有源滤波器还充分利用了无源滤波器的无功补偿功能，在不增加有源部分容量的前提下，可以提供一定容量的无功功率；由于有源部分承受的电网基波电压不大，也没有基波电流流入，因此逆变器容量小，初期投资较小。

Hence, we first analyzed and studied the kinematics and dynamics of PDC bit, and that are utilized to analyzed how to hame cutters by PDC bit whirlpool. Onthe based of this, we do the cutting experiments. With the test, we not only think over the influence to force actting on cutters in rock nature, drilling parameter, cuttersdensity distributed, and also wear state of cutters and PDC bit appearance. Because the PDC bit's cutters are repeaded by polycrystalline-diamand and tungsten carbide, the specific property of PDC wear are not alike that of polycrystalline-diamand and not alike tungsten carbide.

因此，本文首先分析研究了PDC钻头的运动学和动力学，并利用分析的结果对PDC钻头的涡动是如何损坏切削齿的进行了探讨；在此基础上，进行了PDC钻头切削齿的受力实验，在受力实验研究中，不仅考虑了岩性、钻进参数、布齿密度等对切削齿受力的影响，而且考虑了切削齿不同的磨损状态、钻头的冠部形状对切削齿受力的影响；PDC钻头的切削齿是由聚晶金刚石层和碳化钨底层复合而成的，它的磨损特点既不同于金刚石的磨损又不同于碳化钨的磨损，因此，在分析了复合片磨损机理的基础上，进行了PDC钻头切削齿的磨损实验。

In order to find the potential factors resulting in significant improvements in the lubricating be- havior of a compound artificial synovia , which was prepared by ourselves with hyaluronic acid mainly and some proteins and phospholipids, the technology of Atomic Force Microscope was used to observe the appearance of adsorbed film on material surface formed by the compound artificial synovia .

用原子力显微技术观测复合人工滑液在材料表面形成的吸附膜的表面形貌图像，吸附膜上清晰地显示有大量的椭球形分子。

In The World Is Flat, Friedman tells us that globalization has three phases: the first from 1492 to around 1800, in which countries and governments opened up trade with the New World and which was driven by military expansion and the amount of horse-power and wind power countries could employ; the second from 1800 to 2000, in which global integration was driven by multinational companies, steam engines, and railways; and the third, in which individuals are the driving force and the defining technology is a worldwide fiber-optic network.

在《世界是扁平的》一书中，弗里德曼告诉我们，全球化有三个阶段：第一个阶段从1492年到1800年左右，在这一阶段，各国和政府开展与新世界的贸易，这一贸易由军事扩张和国家所能够调动的畜力和风力所驱动；第二阶段从1800年到2000年，这一阶段的全球性整合由跨国公司、蒸汽机、铁路推动；第三个阶段，个人成为驱动力，全球光纤网是关键技术。

The characteristics of vibration in a submerged double shell connected by annular plate drived by a point force in inner shell is studied.

对水下由环形肋板连接的有限长双层柱壳在点激励下的稳态振动特性进行了研究。

The variation of evaporating rate,and also the resulted mean velocity of liquid film in the thin film interline region were revealed,which showed that there existed a local maximum value of evaporating rate in this region by the coupled influences of decreased film thickness and adhesion force caused by the disjoining pressure.

描述了过渡薄液膜区表面蒸发率和液膜平均速度的变化规律，发现受液膜导热热阻和分离压力产生吸附作用的综合影响，该区域的蒸发率存在局部最大值。

Article 36 Force Majeure 第三十六条不可抗力 A bank assumes no liability or responsibility for the consequences arising out of the interr uption of its business by Acts of God, riots, civil commotions, insurrections, wars, acts of terrorism, or by any strikes or lockouts or any other causes beyond its control.

银行对由于天灾，暴动，骚乱，叛乱，战争，恐怖主义行为或任何罢工，停工或其无法控制的任何其他原因导致的营业中断的后果，概不负责。

Early in Yuan dynasty, the development of seal is influenced by various culture elements, scholars and calligraphers automatically find and invade the old territories singly dominate by craftsmen for thousands years, take unified action with them to force the closure of dust and get it a nirvana. Since then, the seal is changes into a kind of artistic creation and embodies the nature beauty of random, free and simple called "beauty comes from involuntariness".

早在元代，印章的发展受到各种文化因素的催化，一些文人学士仿佛在那里面感觉到、发现到了什么，开始闯入了这块由工匠独支撑了几千年的古老领地，与其结伴共伍，鼓努磨洗，力去封尘，使之漏射出缕缕新的光华，从此，印章被作者自觉地作为一种艺术创造而出现，展示了一种随意的、自由的、朴质的所谓"无意于佳而佳"的天然之美。

The microstructure and morphology of the lead telluride optical thin films prepared by ion beam assisted deposition were observed by atomic force microscopy.

利用原子力显微镜研究了离子束辅助沉积碲化铅薄膜的微观结构和表面形貌。

In mechanics kinematics, Jacobin matrix may be calculated and simplified by vector constructing; Inverse solution and its restricting condition be given; Forward solution be solved by new-raphson method. The method need shorter time than optimization and has a lot of advantages in applying program; some relationship of velocity, acceleration, force and error of mapping from input to output have been given. Analyzing of theory base these researches.

在机构运动学研究方面，通过矢量构造的方式计算出了速度雅克比矩阵，简化了计算量；给出了机构位置逆解的计算过程及约束条件；利用Newton—Raphson法计算出了机构位置的正解，该算法比优化法计算时间短，而且利于实际编程；给出了机构输入、输出端速度、力、误差的映射关系，这些研究是机构理论分析的基础。

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。