较多的

Researches show that the drive force characteristics of the electric tractor drive system based on series DC motor is close the ideal characteristics, the curves are concave, low speed with constant power, and high speed with constant torque; the electric tractor has large working speed under different shifts, but the extensive coincidence speed shows that the variable ratio of the gear is unreasonable; the maximum climbable gradient of this electric tractor is more than 30%, and does not need frequent shift when working for its extensive climbable gradient; there are many influence factors of continuous working time, which the more obvious factors are working speed and working load, the working time increases with the increase of the working speed and working load.2. Simulation researches on the drive characteristic of the electric tractor.

研究结果表明：基于串励直流电动机(来源：ABC21论文网www.abclunwen.com)的电动拖拉机电驱动系统的驱动力特性场接近理想驱动力特性场，其各挡下的驱动力特性是一组下凹的曲线，低速恒转矩，高速恒功率；同一行驶速度下所对应高挡驱动力大于低挡驱动力，这是由电机的调速特性决定的；电动拖拉机各个挡位下具有较广的稳定作业速度范围，但是各个挡位之间速度重合的范围较多，说明所用变速箱变速比与电动机匹配不合理；电动拖拉机最大爬坡度达到30%以上，并且各挡爬坡度变化范围较广，作业过程中不需要频繁换挡；影响电动拖拉机连续作业时间的因素较多，其中作业行驶速度和作业负荷影响最为明显，作业负荷越大，连续作业时间就越短，作业速度越快，连续作业时间就越短。2、电动拖拉机驱动特性仿真研究。

The analysis of genetic diversity between different chromosomes showed that the polymorphic loci distribution of Chr.6,Chr.9 and Chr.11 was evener and the polymorphism information content was also more than others chromosomes.

不同染色体间的遗传多样性分析结果表明，Chr.6、Chr.9、Chr.11三条染色体的多态性位点分布较均匀且多态性信息含量也较多，整体遗传多样性丰富程度高于其他染色体。

Above all, buffalo is degree of a kind of seed selection is planted relative to inferior cultivate, have stronger vitality, disease-resistant force and be able to bear or endure the ability of thick raise, from development degree taller Italy arrives the less-developed country with development inferior degree, on the history, buffalo is done not have or had fed the feed of animal source sex such as pink of flesh and blood, fish meal without raise almost, straight so far, the whole world returns the report of disease of mad without a buffalo happening ox or urticant disease, be like mad ox disease, urticant disease, avian flu, Aibola disease to wait for harm mankind health in more and more animal sex diseases today, we can say, buffalo still is a god-given Sukhavati; so far next, the gust of water milk and its nutrition character have other to suckle kind of dominant position that cannot compare, an orgnaization of England undertook grandma of water milk, grandma milk, goat and artificial synthesis are suckled savour an experiment, via repeating for many times, join the person that try to be able to accurate winkle buffalo is suckled and state they are right the partial; of its gust the 3rd, as the addition of global population and the growth that suckle kind of consumption group, allergic to milk number also rises ceaselessly, but have to suckling milk.

首先，水牛是一种选育程度相对较低的畜种，具有较强的生命力、抗病力和耐粗饲的能力，从开发程度较高的意大利到开发程度较低的欠发达国家，在历史上，水牛就没有或几乎没有饲喂过骨肉粉、鱼粉等动物源性饲料，直到目前为止，全世界还没有一例水牛发生疯牛病或痒病的报道，在越来越多的动物性疾病如疯牛病、痒病、禽流感、埃博拉病等危害人类健康的今天，我们可以说，水牛到目前为止仍是一块难得的净土；其次，水牛奶的风味及其营养特性具有其它奶类不可比拟的优势，英国的一个机构进行了一次水牛奶、奶牛奶、山羊奶和人工合成奶的品味试验，经多次重复，参试者都能准确的挑出水牛奶并表示他们对其风味的偏爱；第三，随着全球人口的增加和奶类消费群体的增长，对牛奶过敏的人数也不断增长，但对奶牛奶有。。。

The other technique was so called "Constraint Induced Movement Technique" to apply a shoe lift or wedge under the stronger limb, providing a compelled shift of the body weight onto the paretic limb to increased ability of weight bearing. This technique helps patients achieving symmetry of stance and weight bearing and overcoming the learned disuse mechanism. Therefore, the purpose of this study was to investigate the effect of 5° lateral wedge on non-paretic limb improving symmetry of stance and weight bearing for stroke patients.

另外有一种技巧和方法为强迫诱发运动，在健侧使用鞋垫，强迫病患把身体的重心移到患侧去，藉此增加患侧脚承载的能力，研究有使用加高型或外侧楔型的鞋垫，目的都是要使中风的病患能有较对称的站姿及两脚有较对称的重量承载比例，如此一来可以强迫患侧使用更多，进而克服学习废用机制，上述研究多为急性期病患的探讨且多是观察当下的影响及效果，因此我们想利用外侧楔型鞋垫的帮助，藉由在健侧脚较长时间的穿著，看看对於慢性中风病患的站姿控制所造成的影响。

At high magnification, the neoplastic glands of adenocarcinoma have crowded nuclei with hyperchromatism and pleomorphism .

在高倍镜下可见腺癌内有腺体，腺体较多，腺体内癌细胞内的色素较多，癌细胞呈同质异型性。

Our patients were seen to have higher rate of feet postaxial polydactyly both clinically and radiologically; they had lower rate of clinical postaxial polydactyly over hands, with feet preaxial polydactyly both clinically and radiologically compared to previous review articles covering 52 cases.

临床上，与文献上收集52例比较不管是外观或放射线检查上皆有较高比例的足部中轴后多趾；较低比例的手部中轴后多指及足部中轴前多趾之现象。

Sympegma regelii community, a rangeland desert vegetation, has the highest Shannon-Winner species diversity indices (1.706); the communities of Haloxylon ammodendron and Ephedra przewalskii, which have obvious feature of desert vegetation, are in the middle in species diversity indices (0.875-0.890); the communities of Calligonum mongolicum, Populus euphratica, Tamarix ramosissima and Glycyrrhiza inflata, characterized by desert forest of which saline desert bushes and saline meadows are scattered in the communities, have lowest value of the species diversity indices (0.079-0.495). 3 The structure of desert plant community is dominated by the bush layer. The species diversity indices of bush layer (0.769-1.451) is much higher than that of herb layer (0.193-0.254), and the diversity in herb layer is strongly influenced by bush layer. 4 The species diversity of desert plant communities shows a gradient of change with respect to longitude, latitude and elevation. For example, rangeland plant Sympegma regelii, with a high level of diversity indices (1.706), is in transition to desert plants Haloxylon ammodendronn community (with a low level of diversity indices of 1.379) in a longitude gradient and to saline Tamarix ramosessima community (with a low level of diversity indices of 0.376) in a latitude gradient. Calligonum mongolicum community, with a low level of species diversity (0.819), is in transition to Ephedra przewalskii (with a low level of diversity indices of 0.890) and Haloxylon ammondendron community (with the diversity indices of 0.645) in an elevational gradient.

群落Shannon-Wiener物种多样性水平表现为合头草群落最高(1.706)，具有草原化荒漠植被类型的成分；梭梭群落、膜果麻黄群落居中(0.875~0.890)，荒漠植被类型特征明显；沙拐枣群落、胡杨群落、多枝柽柳群落、胀果甘草群落较低(0.079~0.495)，荒漠林、盐地沙生灌丛及盐化草甸植被均有零星分布。3荒漠植物群落结构层次中，灌木层占居主导地位，群落灌木层物种多样性水平(0.769~1.451)远远大于草本层(0.193~0.254)，且草本层物种多样性受灌木层影响较大。4荒漠植物群落物种多样性分布格局表现为经向、纬向和海拔梯度的变化，经向、纬向变化为物种多样性水平较高的草原化植物合头草群落(1.076)向物种多样性水平较低的荒漠植物梭梭群落(1.379)和盐化植物多枝柽柳群落(0.376)的过渡，海拔梯度则呈现低水平的沙拐枣群落(0.819)到高水平的膜果麻黄群落(0.890)向低水平的梭梭群落(0.645)变化。

The comparative study on vegetation background survey of the stationsand the comparison on level of phytocoenology on zonal habitats indicates thatthe diminishment of the numbers of families,genus and species,compositionof life types,diversity of communities and habitats,;and the increscence in theproportion of photosynthesis functional groups of C3/C4 plant,richness ofspecies,density of tussock and tiller,diversity of species,evenness,leaf areaindex,leaf area duration,dry matter production of communities alongside thelatitude increasing and the temperature decreasing;and the dynamic curve ofthe community productivity also tend to steadily increase along with thetemperature going up and the heat accumulation gradually in moderate-temperate steppe station from violent fluctuation along with seasonal badly-distribution of precipitation in warm-temperature steppe station;manifestingthat transformable tendency of productivity pattern of the community from morevigorous net assimilation,sparser and higher crops stricture of tussock and tiller,and possession on more resources by less species inclined to thicker in densityof crops,superior effectiveness of multi-leaves and pattern of multi-speciesresource sharing,reflecting that bigger disparity of the vegetationcharacteristics and the style of the community growth in the two differentthermal-type steppe stations owing to background of natural-historicenvironment and combination of water and heat.

内蒙古草原区两个不同热量型研究站点植被本底调查和显域地境群落学水平的比较研究表明：随纬度增加和气温降低，植物科、属、种的数目，生活型组成，群落类型和生境类型的多样性均趋于减少，而C3/C4光合功能群比值和群落的物种丰富度，株丛密度，物种多样性，群落均匀度，叶面积指数，叶面积持续时间和群落干物质生产能力均趋于增加，群落生产力动态曲线从随天然降水的季节分布不均而剧烈波动趋向于随气温逐渐升高和热量逐步积累而稳定增长，显示出两站点植物群落从较为旺盛的群体净同化作用、较为稀疏高大的群体结构和少数物种占有较多群落资源的生产力格局向较高的群体密度、优良的多叶性能和多物种资源共享的群落生产力格局转变，反映出在内蒙古草原区不同的自然历史环境背景和不同的温度条件及其水热组合状况影响下，两个不同热量型草原站点植被性质的分异特征和显域地境群落生长模式的较大差别。

The clinical characters of oligodontia concluded from this study are following:(1) There is significant difference that more teeth absent and more existent teeth anomalies in patients of oligodontia/S group than in patients of oligodontia/I group, and the peg-shaped upper lateral incisor is the most frequently affected teeth with shape anomaly.(2) Both of the two groups have no significant differences in number of teeth missing between maxilla and mandible as well as that between left and right side.(3) The distribution of teeth missing is bilateral symmetry in both groups, but the frequency of teeth lost are different: excluding the third molar, in oligodontia/I group, the lower second premolar is the most frequently congenitally missing tooth followed by the upper lateral incisor, while in oligodontia/S group, the most frequently missing teeth are mandibular canine and maxillary lateral incisor. Nevertheless, the first molars are the most stable teeth in both groups.(4) In oligodonita/I group, the mean mesiodistal dimensions of all type of existent teeth are significantly smaller than normal value. It is implied that oligodontia is not an isolated phenomenon, but is related to a complex of other dental changes.

对于口腔多个恒牙先天缺失的临床特点有以下初步结论：(1)综合征型先天缺牙患者较单纯型先天缺牙患者恒牙缺失数目更多，平均分别为23.9个和14.9个，且现存牙齿有更多的形态异常，分别为7／10例（70％）和6／22例（27.3％），其中最常见的是上颌侧切牙畸形；(2)两种类型的多个恒牙先天缺失患者的缺牙数目在上下颌及左右侧之间均无差别；(3)两种类型的多个恒牙先天缺失患者在缺失牙位上均呈对称分布，但在具体牙位上有所差异：不计第三磨牙，单纯型先天缺牙最常缺失的牙位是下颌第二双尖牙、其次为上颌侧切牙；而综合征型先天缺牙最常缺失的牙位是下颌尖牙和上颌侧切牙；无论何种情况，第一磨牙均为牙列中最稳定的牙齿；(4)在单纯型先天缺牙患者中，现存恒牙的牙冠宽度较国人正常值偏小，差异显著，提示牙齿形态与多个牙先天缺失有一定相关性。

The middle and lower parts of woodland and grassland had higher soil water contents during rainy season, which resulted from smaller evapotranspiration and more infiltrated water with a lower gradient. However, upslope runoff infiltration was another reason for hillslope with a lower cover ratio, such as bare land.

雨季林草地坡中下部土壤水分含量较高的原因，可能主要与其蒸散较小且坡度较缓导致入渗水量较多有关；但是对于植被覆盖度较低的坡地，坡中下部土壤水分含量较高还与上方来水有较大的关系。

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。