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In order to locate direct singular positions, we begin by expressing the determinant of the Jacobian matrix Jx in terms of position of the center P of the moving platform. The Z and the Y coordinates of P may be chosen from the workspace, then the determinant of Jx is now a six order polynomial of X, the x coordinate of P. The direct singular positions corresponding to are obtained by solving the polynomial equation, and retaining all real roots in the workspace.

由速度分析的Jacobian矩阵Jx，将其行列式值表示成活动平台中心点P位置的函数，寻找奇异位置的方法是先假设平台高度，再假设工作空间内P点的Y座标，使Jx行列式成为P点X座标的六次方程式，求解方程式并保留在工作空间内之实根。

In some cases, when the ore dressing machinery factory the size of large ore blocks is also a great degree, in order to reduce the paragraphs broken ratio, or the product in order to get a finer granularity, can also be broken processes, Sec.

在个别情况下，当选矿机械厂的规模很大，原矿块度也很大，为了减少各段破碎比，或者为了得到更细的产品粒度，也可用四段破碎流程。

They try to re-establish social order. The article introduces Motif theory in order to summarize changes in patricide behavior and culture implication. The Patricide Motif in the movie after 1980's is considered as research object. The article researches the object horizontal and vertical from multi-angle.

本文基于对这一现象的关注，引入母题这一理论框架，将1980年代以后电影中的"弑父"母题作为研究对象，归纳和总结"弑父"行为的流变，透视家庭关系背后的社会文化意蕴，从整体上进行横向与纵向的梳理和多角度的探析。

In the act of apologizing, in order to reach optimization of the apologizing information, we need to make and choose the tactics according to such factors as purpose, environment, target of apologizing, etc. Then it turn materially concrete forms, and these different language forms embody the vocabulary, grammar, rhetoric' s characteristic.This text attempts the research of the act in order to passes the perspectivity of apology from the multi-disciplinary and many angles as the breakthrough point.

在道歉活动中，为了达到道歉信息传递的最优化、实现最优化的表达效果，需要依据道歉的目的、环境、对象等因素制定、选择策略，然后物化为具体的语言形式进行表达，这些不同的语言形式体现出语音上的、词汇上的、语法上的、修辞上的特点。

It is first found that there is an important difference in order-disorder of crystalline structure between the artificial pitchblende and natural pitchblende. Unlike natural pitchblende in which uraninite nanocrystals arrange in order, the artificial pitchblende only contains disorderly uraninite nanocrystals.

在国内、外首次发现此类人工合成沥青铀矿和天然沥青铀矿在晶体结构的有序—无序上存在重大差异：天然沥青铀矿中的纳米级晶质铀矿为有序排列，而人工合成沥青铀矿中的纳米级晶质铀矿则为无序排列。

Therefore, in order to adapt to changes in the market demand, Chinas development of supermarket chains should be innovative supermarket business philosophy integration supermarket activities, Construction supermarket development platform cautious expansion and scale, while deepening the supermarket management in order to promote the development of chain stores.

因此，为适应市场变化的要求，我国的连锁超市在发展中应创新超市经营理念，整合超市业态，构建超市发展平台，谨慎扩张，追求规模效益，同时深化超市经营管理，以此来促进连锁超市的发展。

But in what Kelly terms "the new order", the law of plentitude kicks in, leading a savvy company such as Netscape to distribute its Web browser for free in order to sell auxiliary services or products.

不过在凯利所谓的"新秩序"中，丰富的法则应运而生。受其引导的公司有如网景这样明智的公司，免费发放网络洲览器，以便推动销售辅助服务或产品。

In the proposed formulation, the fluid jump arc of Second order Fluid Stochastic Petri nets, which takes deterministic jump height, is introduced for the sake of modeling impulse rewards. In order to model non-Markovian stochastic systems, the fluid jump arc is combined with the flush-out arc. As a result the fluid jump arc as a modeling primitive has the function of emptying in zero time the existing fluid from the continuous place connected with it.

为方便利用该机制建模冲量回报，引入二阶流体随机 Petri 网中的流体跳跃弧，跳跃弧的跳跃高度取确定值；为方便建模非马尔科夫随机系统，将清空弧与流体跳跃弧结合，使得流体跳跃弧作为建模原语直接具有瞬间内清空与之相联接的连续库所的功能。

In order to overcome this problem, in this paper, the surface electric current of the conducting sea surface and the first-order scattering from the conducting plate are obtained by employing Physic Optics method. The backscattering field of the time-dependant sea surface is calculated by using Kirchhoff Approximation. Meanwhile, taking the advantage of a newly developed technique that utilizes the reciprocity theorem, the difficulty in formulating the secondary scattered fields from the composite target is reduced. The dependences of the backscattered field on the parameters, such as the wind speed and the sizes of the plate are discussed.

为了克服这一问题，本文应用物理光学近似求解了导体海面表面电流及导体平板的一阶散射场，应用基尔霍夫近似给出了海面的后向散射场，同时借助互易性定理降低了求解平板和海面之间二次耦合散射场的难度，讨论了平板尺寸、风速等对后向复合散射场的影响。

The stem was cut into several segments away from the pine seeding, arranged and collected in the order of chronology time and distance from where they were inoculated. To separate B.xylophilus coarsely out from the stems and made them into paraffin slices. And be observed under the potics microscope by dyed with safranin-fast green contrast-stain method and PI fluorescence stain method. In order to find out how about the nematode rigour distributing , but also ebb and flow of their amounts after invading the host pine seeding. Seek the pathological changing orderliness of host cells in different position along with the remotion of nematodes. By deeply analysing the variety of host cell nucleolus to estimate whether the host cell took place the programmed cell death after inoculated B.xylophilus.

按时间进程和与接种点上下距离的远近，对松苗分茎段进行粗分离和制作成石蜡切片，分别用番红-固绿双重染色法和碘化丙锭荧光染色法在光学显微镜下观察，以了解线虫侵染后在寄主体内的准确分布和数量的消长，寻找随着线虫的移动扩散，寄主不同部位细胞病变的数量、速度发生的变化规律，并进一步通过分析其细胞核的变化来判定松材线虫侵染后是否能诱发寄主细胞发生程序性死亡(programmed cell death，PCD)。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。