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Structures of Na~+-AD ion-complexes with 1 or 2 H2O molecules were obtained. It was found that H2O can bond with Na~+ in the structure of Na~+-AD to form Na-O van der Waals bond. H2O molecule can also bond with N or O atoms in AD moiety to form H-bonds as N-H…Ow or O…Hw-Ow. The former process takes place more easily. The most stable structures of Na~+-AD ion-complexes with 1 and 2 H2O molecules are W-C7AB and 2W-C7AB, respectively.αB conformer of Na~+-AD can not exist in the presence of 2 H2O molecules.

研究发现水分子可以结合在Na~+-AD络合离子中的Na~+附近形成Na-OW范德华键，也可以与Na~+-AD络合离子骨架结构中电负性较强的N或O原子结合形成N-H…OW或O…HW-OW氢键，相对而言，水分子更容易结合在Na~+-AD络合离子中的Na~+位置，Na~+-AD最稳定的带1个或2个水分子的结构分别为W-C7AB和2W-C7AB，Na~+-AD络合离子的αB构象在2分子水存在的情况下完全消失。

"This can be a problem, because when we are told our loans can grow by a certain percentage then it's like we're in a conga line and nobody can overtake their competitors by growing their loan book," a senior banking executive says.

一位银行业高管表示："这可能造成一个问题，因为当我们被告知贷款只能按一定比例增长时，那就好像我们必须排成一排跳康加舞一样，没有人可以通过扩大贷款规模来超越竞争对手。"

Network congest can make network communication quality drops not only, still can affect the QoS of service quality standard of the user, still can affect network safety even.

网络拥塞不仅会使网络通信质量下降，还会影响用户的服务质量水平QoS，甚至还会影响到网络平安。

You can write a letter, you can talk about it to your Congressperson, you can talk to people in bars.

你可以写信，可以与议员讨论，可以与人们在酒吧谈论这一问题。

This article takes the teaching of conic sections as an example. By designing worksheets, teachers can introduce the historical material about conic sections to students. By way of using Apollonius' definition of parabola, ellipse and hyperbola, teachers can introduce the geometric aspect of "conic section" to students. By using the concept of " latus rectum " in Conics , we can connect "conic sections"-- representation of geometrical aspect, with "the equation of conic sections"-- representation of algebraic aspect to improving insufficiency of text books.

同时本文也试著从历史文本中寻找材料，简单举例说明数学教师可以如何应用这些史料在几何单元教学上，例如三角函数的正余弦定理，最后再以圆锥曲线的正焦弦为例，说明如何利用数学史料於此单元的教学，尤其是阿波罗尼斯的《锥线论》中对圆锥曲线的3个命题，将此3个命题的内容与意涵，尤其是正焦弦在圆锥曲线的几何意义上所扮演的角色，将其适当地融入教学中，将可使学生真正学习圆锥曲线的几何知识，而不再只是代数形式的几何知识。

A manner is presented with which complex curves including polylines, conics or free curves can be precisely represented, and corresponding algorithm is designed. The curve can be C〓 or C〓 continuous. So all type of curves and their composites can be represented in NURBS. A deep research is paid to skinning surface. Different forms of the formation of knots vector are applied to different section forms.

对由多段直线、二次曲线、自由曲线进行任意组合的这类复杂曲线，提出了一种用一条NURBS曲线进行精确表示的方法，并设计了相应的算法，曲线段连接处根据需要可为一阶连续或形成尖点，从而使所有类型的曲线及由它们任意组合所生成的复杂曲线统一用NURBS表示。

We can know and get the run of all the monitoring units situation intuitionistic and directly at the real time through monitoring the correlative data and image. With these we can do the reaction in time for the conk. The monitor system can help us store, analyze the relevant data to support us improving or decision. This kind of system is fit for the development of power modernization.

监控中心对各监控单元的有关数据、图像进行监控和监视，能够实时、准确、直接地了解和掌握各个监控单元的情况，并及时对发生的情况做出反应，并能够对有关数据进行存储、分析，为以后的决策和改进提供有力的支持，以适应现代化的发展需要。

You can trace the outlines of such patterns, you know how to move your head to get a better view, and you know when you have moved it too far to see the whole keyboard. You can obscure any feature of the keyboard by holding your finger at an appropriate location between it and your eye. And instead of describing the relation between the Intel logo and the 'P' key, you can use your finger to trace a connecting path.

你能循迹这样的样式，知道如何移动你的头获得更好的视角，你知道当你移动足够员能够看到全部键盘的时候，你能在它和你的眼睛之间，用手指分不清任何键盘的特征，取代在'图标'和'P键'之间关系的描述，你能用你的手指循迹一个相关路径。

In fact,u can't choose somethings,at the same time,u can't change somethings,of course u can choose or change some of things ,but u would like to keep usual bcoz it's become a kind of habit as decadence,what's the decadence,it's a kind of helpless or conniption,even abandonment when the decadence become to a kind of habit,it's the nature life not only mode

坐公共汽车521，追前面另外一个521，那个速度啊，当时有人提醒要注意安全，结果司机一句话，我们全部不言语了，"前头那个都不怕死，老子怕个莫斯……"当年**来武汉考察，似做公交车，深有感触的说：武汉最有特色的就是公交司机的技术世界超一流！

Study on the psychology and mental salvation of the urban vulnerable groups can help them know their problem that they are faced. It can help them take scientific and rational attitude to treat temporarily inextricable phenomenon and unable conquerable problem. It cannot bring on panic psychology. It can meet peoples deep level mental demand.

对城市弱势群体心态和心理救助进行研究，它有利于帮助人们正确认识所面临的问题，对暂时无法解决的现象或者自己无法克服的问题采取比较科学和理性的态度，不至于出现心理恐慌，同时得到更深层次的心理需求。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。