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The dynamic model and equivalent circuit are researched, A dynamic model and equivalent circuit in d-q frame of dual three-phase synchronous machine are presented for the first time, based on the analyzing of the inductance factor between the windings of synchronous machine under ideal conditions. From them, a dynamic model and equivalent circuit that has general significance is educed.

基于理想同步电动机模型，以相绕组为研究对象，对双电枢绕组同步电动机的动态数学模型进行了研究，首次推导出双电枢绕组同步电动机在d-q坐标系的动态数学模型，绘出了d-q坐标系等效电路。

Although clad diamond prevent iron family elements from eroding diamond and improve the strength between matrix and diamond, there still are many problems in applying Fe-base formulae. After the adding amount of reinforced elements is determined, the effect of the basic elements of matrix on its comprehensive performance is studied. The results show that while wc content is 15%. Fe/Ni 1: 1, 663-Cu etc 50%, Sintering temperature 920℃, temperature kept time 1. 5 mintues, matrix comprehensive preformance is best.

尽管金刚石表面镀膜隔绝了铁族元素对金刚石的侵蚀和提高了胎体对金刚石的粘结强度，但以Fe代Co还存在胎体的综合机械性能等问题，本文试着从材料学的强化理论出发确定了微量元素的添加量之后，用正交试验设计方法研究了胎体的基本组元WC、Fe/Ni、663—Cu的加入量及烧结工艺对胎体综合机械性能的影响，得出在WC15%，Fe/Ni1：1，663—Cu等其它为50%，烧结温度920℃，保温时间为1.5分时胎体的综合机械性能最优。

Time of Beijing of dispatch of sina science and technology on December 28 message, according to foreign media coverage, youTube Zhou Si announced the most popular 2007 video, include among them " abstruse Ba Ma's girl "," weep the vermicelli made from bean starch that supports cloth Lan Ni ", and " besiege leonine buffalo " etc.

新浪科技讯北京时间12月28日消息，据国外媒体报道，YouTube周四公布了2007年最热门视频，其中包括&奥巴马女孩&、&流泪拥护布兰妮的粉丝&、以及&围攻狮子的水牛&等等。

In the case of library characterization and QA, we have consistently reduced the time from two weeks to one or two days, depending on the availability of computing resources-that is, CPUs and software licenses.

在库特征化和质量评估中，根据计算资源的多少，所需时间可从原来的两周缩短到两天甚至一天。

Compared with common quadratic elements, this kind of interpolation method achieves the same accuracy by adding a rotation degree of freedom on every vertex without using midpoints of edges or interior points. Whether consider from the running time or the space that data occupied, this sort of element is more effective than 8-nodes quadrilateral.

和一般的二次单元相比较，这种插值方法不需要使用单元边中点或者内部节点进行插值，仅在每个顶点上增加一个转角自由度就可以得到和二次元相当的精度；无论从运算时间还是数据所占用的空间来考虑，这类单元的计算花费均大大低于八节点四边形二次单元。

Lying on the bank or sitting in a boat, one may take the time to enjoy that enchanting landscapes of hills and the lake, and savors the peace for being away from uproars. It is truly a wonderland.

傍晚，安娜普纳雪山金色的落日照耀在湖水中，躺在岸边或坐在小舟里，任船工将船荡来荡去，慢慢享受这旖旎的湖光山色和一种远离尘嚣的宁静，真是神仙一样的日子。

Based on the investigation of dragonflies in Laoshan area of Nanjing City from 2005 to 2007, the primary results showed that there were 30 species, belonging to 21 genera, 6 families and 2 suborders , with 7 species recorded in Jiangsu Province for the first time.

我们于2005年～2007年对南京老山地区蜻蜓目昆虫进行了调查研究，通过对采集标本的鉴定和分类，初步确定南京老山地区蜻蜓目昆虫有2亚目6科21属30种，其中7种是江苏省新记录。

Field experiment was conducted to investigate the effect of nitrogen application rate on fresh grass yield and quality of oat. The results showed that fresh and dry grass yield of oat "Baoluo" increased with the increment of N application rate from 112.5 to 135kg/hm^2. At the same time, content of crude protein, total phosphorus, total calcium and crude ash in dry grass were improved, but content of crude fibre was decreased.

田间试验表明，燕麦新品种&保罗&在施氮量为90~135kg/hm^2，的情况下，其植株鲜草和干草产量随着施氮量的增加而增加；干草中粗蛋白质、全磷、全钙、粗灰分含量随着施氮量的增加而提高，粗纤维含量则随着施氮量的增加而降低。

The results show that, the chloride concentrations and diffusion coefficients are both a one-humped function of elevations (can also be the time scale of seawater infiltration), they increase with the increase of elevation until they get to the peak value, and then decrease with the increase of elevation; an evident relationship is being between the surface chloride concentrations and the wave forces acted on the concrete surface, while there is no much difference among the diffusion coefficients; the diffusion coefficients get to bigger as the depth from the concrete surface increase in the influence of the capillary structures evolution and chloride concentration, but this tendency of change was alleviated with the increase of depth.

研究结果表明：氯离子侵蚀混凝土设施的竖向分布规律为氯离子浓度、扩散系数与标高之间同为单峰函数分布，先随高程变大而变大，达到峰值后，随高程变大而减小；氯离子侵蚀混凝土设施的环向分布规律为混凝土构件表面氯离子浓度、氯离子通量与波浪力之间有明显的对应关系，波浪力越大，则表面氯离子浓度和氯离子通量越高，而扩散系数在各方位角差别不明显；由于混凝土长期服役过程中内部毛细孔隙结构演化以及氯离子浓度的影响，氯离子扩散系数随混凝土深度变大而变大，但这种变化趋势随深度逐渐趋缓。

At the end,slowly,I no longer feel surprised,China is just like that,in the middle of the mountain,our fellow countrymen are weak from hunger and with only rags on their bodies,we joyfully declare,we no longe are "sicked man of Asia",instead,we are a powerful nation of sports;In front of television sets,our students in towns and cities,howling for the nation to "Out Of Asia",the mountain people,can only chew cold sweet potato under oil lamp;when we smash television sets because of losing soccer match,the mountain people don't even know what is soccer nor television;when massive taxpayers's money is pumped into sustaining this so called powerful sporting nation's bubble,these people,their voice being taken away at birth,at th same time,lost the right of education,because they have no money to pay the fees.

最后我逐渐不那么吃惊了，中国就是这样，当大山深处的同胞虚弱不胜鹑衣之时，我们早已喜滋滋地宣布，我们不再是东亚病夫，而是一个体育强国；当我们在城里的学生们围在电视机前，汗流浃背地为所谓冲出亚洲嗥叫之时，他们正在油灯下嚼着冰冷的红薯；当我们在为所谓球赛失利砸烂电视机时，他们有些人还不知足球和电视为何物；当我们投入大量纳税人的钱去维持那个体育强国的泡影时，他们这些被天生剥夺了发言权的人民同时丧失了受教育权，因为交不起学费

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。