中部的

The Silk Road gave rise to the clusters of military states of nomadic origins in North China, invited the Nestorian, Manichaean, Buddhist, and later Islamic religions into Central Asia and China, created the influential Khazar Federation and at the end of its glory, brought about the largest continental empire ever: the Mongol Empire, with its political centers strung along the Silk Road (Beijing in North China, Karakorum in central Mongolia, Sarmakhand in Transoxiana, Tabriz in Northern Iran, Astrakhan in lower Volga, Bahcesaray in Crimea, Kazan in Central Russia, Erzurum in eastern Anatolia), realizing the political unification of zones previously loosely and intermittently connected by material and cultural goods.

丝绸之路引发了由中国北部开始的游牧地区军队丛生，引发了景教、摩尼教、佛教，后期还有伊斯兰宗教进入中亚和中国，创造了有影响力的哈扎尔联盟。在它的显赫终结之时，带来了曾经是最大陆地面积的帝国：蒙古帝国，它的政治中心是沿着丝绸之路（中国北部的北京，蒙古中部的哈拉和林、河中地区的萨马卡罕、北伊朗的大不里士、伏尔加河下游的阿斯特拉罕、克里米亚的巴塞莎拉、中俄罗斯的喀山、安纳托利亚东部的埃尔祖鲁姆），意识到先前松散和被物质和文化商品间歇地连接的地区需要政治上的统一。

Widely distributed in Central America of fresh water and salt waters, the United States for the main freshwater aquaculture species. 1999 U.S. freshwater aquaculture production accounted for about 81 percent of the large warm-water species of fish, fork spots to fish tail as the Ministry of Agriculture to promote the country's fresh water breeding improved varieties have a very obvious advantages: First of Table no scales no small thorn, processing convenience and the other is the quality and refine, nutrient-rich, easy to digest and absorb the third is of miscellaneous eating habits, fast-growing, high yield, strong adaptability and easy to keep the fourth character is tame, like cluster activities , High density of aquaculture, particularly the pond custody and cage culture Fifth Tansi, easy fishing, Youdiao suitable for the development of leisure industry.

广泛分布于美洲中部的淡水和咸水水域，为美国的主要淡水养殖的品种。1999年约占美国淡水养殖总产量的81%，该鱼种是大型温水性淡水鱼类，斑点叉尾回鱼作为农业部向全国推广的淡水养殖的优良品种具有很明显的优点：一是体表无鳞没有小刺，加工方便；二是内质细嫩，营养丰富，容易消化吸收；三是食性杂，生长快，产量高，适应性强，易于饲养；四是性格温顺，喜好集群活动，可以高密度的养殖，特别是池塘主养和网箱养殖；五是贪食，易垂钓，适合发展休闲游钓业。

The idea of a similar coherence underpinned Lévi-Strauss's magnum opus, the four-volume Mythologiques series, published between 1964 and 1971. Not unlike a latter-day Frazer revisiting the Golden Bough, he started out with the myths of the Bororo in central Brazil, gradually gaining in complexity and working northwards towards Oregon and British Columbia, and from there back to Brazil. He proceded by a kind of "semantic contagion", demonstrating how one myth implied and related to another through a series of parallels and contrasts.

类似的连贯性的想法为Lévi-Strauss的巨著打下了基础，那就是1964年至1971年出版的四部神话学系列，不像后来的Frazer再次访问Golden Bough，他一开始着手就使用巴西中部的Bororo的神话，这些神话复杂的情况下，在工作中从Oregon和British Columbia，再从那里返回巴西的过程中逐渐得到的，他接着以一种&语义传染&，演示如何将一个神话和相关的另一个相似之处通过一系列的对比联系在一起。

The analyses of social and economic development indicate that, up to 1998, the total population in Yijinholo County is 143, 949 persons, the population density is 24 persons per square kilometer, large population number results in land exploitation for food and overgrazing in rangeland. The change in temporal and spatial pattern of landuse from 1977 to 1998 demonstrates that mobile sand dunes was replaced by rangeland and woodland and partial shrubland in the middle of study area changed into rangeland and farmland from 1977 to 1987, while mobile sand dunes and rangeland transformed into shrubland and farmland in a small parts from 1987 to 1998, the above-mentioned change is proved by the change of fractal dimension index and fragmentation index at landscape and its element levels.

对近50年来伊旗社会经济发展的分析结果表明，虽然人口增长率基本上呈下降趋势，但由于人口基数较大，截至1998年底，伊金霍洛旗的人口总数达143949人，人口密度为24人／平方公里，较高的人口密度带来了更多的生存需求，使得大量的草牧场被开垦，而剩余的则严重超载。1977-1998年间伊土地利用结构总体格局变化的分析结果表明，1977-1987时段内主要是流动沙地为草牧场和乔木林地所取代，伴随着中部的部分灌木林地转换为草牧场和农地：而1987-1998时段内主要是草牧场和流沙地为灌木林地和农地特别是灌木林地所取代，而景观及各景观要素的分维度指数和破碎度指数的变化也充分证实了这一结论，虽然在前10年（1977-1987年）中大面积的灌木林被砍伐，但土地利用格局的整体变化间接地反映出该时段内荒漠化的状况正在发生逆转。

Hairy perennial of central United States having round deeply-lobed leaves and loose panicles of large crimson-purple or cherry-red flowers.

美国中部的多毛的多年生的植物，有圆的深深叶状的叶子和大的深红紫色或樱桃红色花的宽松的圆锥花序。

Simon again marveled at the discrepancy between what Morgenes rooms seemed to be—a converted guard-barracks perhaps twenty paces in length, nestled against the ivy-tangled wall of the Middle Baileys northeastern corner—and the view inside, which was of a low-ceilinged but spacious chamber almost as long as a tournament field, although not nearly so wide.

他再一次惊奇，Morgenes医生的房间的内部和从外部看上去是那么的不同。象是守卫们住的兵营的样子，可能有二十步长，依偎在城堡中部的东北角那个纠结着长春藤的墙壁。而它的里面，它有着低矮的天花板，但内部的广阔空间就象是比赛的场地那么长，就算是不一定有那么宽。

The results show that space finite analysis results are close to test ones, bottom chords suffer axial force and large in-plane bending, and the max stress is nearby each middle internode. The max stress of node crossbeams occurs in No.2 bottom flange, and that of internode crossbeams happens in ones lying in the middle of every internode. The concrete slab is in tension at the longitudinal direction, and also suffers bent at vertical loads. The degree of completely-composite model taking part in the combined actions is about 55%, while that of semi-composite model is 42%-43%. The combination of concrete slab and bottom chord increases the degree of floor system taking part in the combined actions, lightens the burden of bottom chord, and reduces out-of-plane bending of node crossbeams especially the ones near bridgehead. Stress and displacement of main truss can be evaluated by a equivalent plane rigid frame in preliminary design, and effective stiffness of bottom chords are composed of original ones and concrete slab, and the concentrated load from deck can be translated into uniform load.

研究结果表明：空间有限元分析结果与试验结果较吻合；下弦杆受到轴向拉力和较大的面内弯矩作用，各节间最大应力出现在节间中点附近；节点横梁最大应力发生在横梁2的下翼缘，节间横梁最大应力发生在位于端节间中部的小横梁上；混凝土板顺桥向整体受拉，并在竖向集中荷载作用下产生弯曲变形；全结合模型大部分节间内的桥面板参与主桁共同作用的程度为55%左右，半结合模型桥面板的参与程度为42%~43%；桥面板与下弦杆结合能够增加桥面板的参与程度，减轻下弦杆荷载，减少节点横梁尤其是靠近桥头横梁的面外弯曲；对桥梁进行初步设计时，主桁杆件的位移与内力可按照1个等效的平面刚架计算，下弦杆的等效刚度由原下弦杆截面和混凝土桥面板截面组合而成，桥面荷载可转化为均布荷载施加。

Simon again marveled at the discrepancy between what Morgenes' rooms seemed to be—a converted guard-barracks perhaps twenty paces in length, nestled against the ivy-tangled wall of the Middle Bailey's northeastern corner—and the view inside, which was of a low-ceilinged but spacious chamber almost as long as a tournament field, although not nearly so wide.

他再一次惊奇，Morgenes医生的房间的内部和从外部看上去是那么的不同。象是守卫们住的兵营的样子，可能有二十步长，依偎在城堡中部的东北角那个纠结着长春藤的墙壁。而它的里面，它有着低矮的天花板，但内部的广阔空间就象是比赛的场地那么长，就算是不一定有那么宽。

The invention relates to a desk type drill machine for preventing drill head wreckage, comprises chassis, supporting post, operating board covered in middle of supporting post, cabinet and generator; cabinet is equipped with tension pulley pressure sensor, belt tension unit and pressure foil gage; tension pulley is compacted on driving belt of drill machine, pressure foil gage is installed on top bar of tension pulley, the pressure foil gage is in electric connection with input end of controlling circuit, output controlling end of controlling circuit is connected to power input end of generator.

本发明是防止钻头折断的台式钻床，包括底座、支柱、套在支柱中部的工作台、以及机箱和电机，机箱上设有张紧轮压力传感器，由皮带张紧装置和压力应变片组成，其中的张紧轮紧压在钻床的传动皮带上，压力应变片设在张紧轮的顶杆中，压力应变片与控制电路的输入端电连接，控制电路的输出控制端连接在电机的电源输入端中。

Michael Drinkwater's detailed study of central Zimbabwe showed that'improving farmers' access to credit has placed many of them in seriousdifficulties' compounded by 'an overzealous launching of a group creditscheme' and the 'doubtful viability of high cost fertiliser packages'inappropriate for the erratic climate.

MichaelDrinkwater对于津巴布韦中部的详尽的研究显示，&改善农民获得信贷的条件给他们中的很多人带来了严重的困境&，这种困境&混合着过度热情的对小组信贷计划的展开&和&高价化肥包裹在变化无常的气候下的的可疑的效用。&，

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％。