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As the innovation and combination is developing, our automobile industry has taken place some new change, which tends to centralize regionally. There are four most representative regions. The first is the area along the Bohai Ocean, which mainly contains Jilin, Liaoning, Tianjin and Beijing. The second is the area along the Changjiang River, which mainly contains Chekiang, Nanking and Shanghai. The third is the Northwest area, which mainly contains Hubei and Chongqing. The last is the area near the Zhujiang River, which mainly contains Guangzhou.

随着深化改革扩大开放，联合兼并和高速发展，我国汽车工业的格局发生了新的变化，表现出明显的地域集中特点，其中产量最大、最集中的四大区域是：一是环渤海地区，主要由吉林、辽宁、黑龙江、京、津两市三省的汽车工业集团和企业组成；二是长三角地区，主要由江浙、南京、上海的汽车工业集团和企业组成；三是西北地区，主要由湖北和重庆的汽年工业集团和企业组成：四是近年来迅速崛起的以广州为核心的珠三角地区。

The level of feed-water and drain system is comparatively high in the history of China.The research on the level of agriculture in Han dynasty indicates that the prosperity of cities in Han dynasty is based on the tender agriculture and the food supplies import is a constant state in the study area. There is no breakthrough in level of agriculture after Han dynasty,and it is an important reason that the city development in the study area is fluctuant in the history of China.From the end of Han dynasty to North and South dynasty,the climate change made the cold and arid weather keeping in the study area,and affected badly the agricultural outputs.The mode of land-use was transformed from the agriculture to the nomadism in this stage.The climate change made the desertization develop mightily and fast,and approach the scale of modern time in the study area in the North and South dynasty.

研究区汉代农业生产水平的综合分析表明，一方面，汉代城市的繁荣是建立在比较脆弱的农业基础上的，粮食等物品不断的外部输入是一种常态，汉代以后很长时间粮食生产水平并没有突破性的提高，这是研究区城市发展呈阶段性起伏的重要原因；另一方面，南北朝时期冷干气候的持续，对脆弱的农业生产具有重大影响，农业向牧业迅速转化，城市的区域农业支持系统受到严重影响，该时期沙漠化也强烈发展。

An adaptive grid scheme controlling cell area is used to generated grids in the divergent section of symmetric annular nozzle, and the generated grids are used in the flowfield calculation through the uncoupled way. The elliptic equations are used to generate grids in three dimensional regions of FDN divergent section, the source terms used in the equations employ a mathematical form which is independent of the boundary shape and of the boundary grid point distribution, the free parameters contained in the source terms are determined by the two restraint conditions, the intersection angle of transverse grid lines with boundaries and the local curvature of the transverse grid lines at the boundaries, and the interior grid distribution controlled directly by the grid point distribution assigned on the boundaries is realized, it makes the grid more clustering near the nozzle wall. For the generated grids in the whole computational regions have a good smoothness and orthogonality, the accuracy of calculation in the flowfield is ensured.

对轴对称的环形喷管采用控制网格面积的自适应网格方法对扩散段部分进行了网格生成，并通过非耦合方式应用于喷管的流场计算中；对强制偏流喷管扩散段内的三维区域采用椭圆型方程进行网格生成，方程中的源项采用了与边界形状和边界网格点分布无关的数学形式，源项内的自由参数由横向网格线与边界的交角及横向网格线在边界处的局部曲率两个约束条件来确定，实现了由边界上的网格分布直接控制内部的网格点，使壁面附近具有较密集的网格，并且在整个计算区域内的网格都具有良好的光滑性和正交性，从而保证了流场计算的准确性。

Ore source of celestite mineralization system is complex in this area. Weathering and erosion of the floor of the basin and the mountain around the basin, evaporite sediment in the earlier, deep water, Mesozoic and Cenozoic volcanism can provide the strontium. In particular, serving as initial ore source, oil-field brine supplies the majority of strontium.

该区矿源场分析表明，锶的来源有基底和周边山系风化剥蚀来源、老含盐地层补给、深部水和中、新生代火山活动补给；其中，盆地基底和周边老山风化以及深部水补给为主要来源，特别是油田水作为矿源层为锶矿床的形成提供了大量锶源。

Presents a demonstration project of solar-ground source heat pump heating and cooling in severe cold area. According to the characteristics of the combination system of solar-ground source heat pump and floor panel heating in the project,puts forward a new operation mode and executes preliminary heating experiment.

介绍了严寒地区太阳能-地埋管地源热泵供暖供冷示范工程，针对示范工程中太阳能-地埋管地源热泵与地板辐射供暖相结合的特点，提出了严寒地区太阳能-地埋管地源热泵系统的新型运行模式，并进行了初步的供暖实验研究。

The organic geochemistry characteristics of source rocks and oil sands in Well Hu 41,Well Hu 83 in Huzhuangji area are studied,by which a preliminary judgement is made that the type of kerogen of Es_3 source rock is a mixed type with high maturity,and its depositional environment is saltness reduction one.

通过对胡状集地区胡41井、胡83井等烃源岩和油砂进行有机地球化学特征研究，可以初步判定胡状集地区沙三段烃源岩干酪根类型为混合型，成熟度较高，沉积环境为咸化的还原环境；沙三段原油属于成熟原油，沙二段原油属于低熟原油；沙三段原油为自生自储原油，沙二段原油与沙三段原油不同源。

Based on the research of oil geology characteristic of Xing'anling group in Sudeerte area,by researching the three main accumulation factors source rock,transform pathway and trap for oil formation, showed that the main transform pathway for oil migration in K1n are source rock,unconformity and sand body,and trap related with fault is the main place for oil migration.

在苏德尔特地区兴安岭群石油地质特征研究的基础上，对其油成藏的源岩、输导通道和圈闭3个主要成藏要素进行了研究，得到南屯组是其主要源岩，源断裂、不整合面和砂体是油运移的主要输导通道，与断层有关的圈闭是油聚集的主要场所。

The source of slack deposits is the loess of the upper reach where the soil erosion is very heavy, while the source of sand is the airslaked rocks of mountainous area in the upper reach. 3. There were several "interbedded slack deposit-aeolian fine sand layers" in both LHT and YWC profiles, the silt layers are slack water deposits and the aeolian fine sand layers were carried by the NE direct wind.

在LHT、YWC和YYC剖面中，磁化率均呈现出平流沉积层中偏低，而在风吹沙和中、粗沙层中偏高的特点，其原因是平流沉积层的物质来源多为上游黄土区的土壤侵蚀和水土流失带来的土壤，而沙层的物源则是上游基岩山区的岩石经风化、搬运而来。

The two volcanic materials are similar but are also different ①the partition mode of rare-earth element is similar to that of the basalt.②the increase content of the rare-earth element content in transitional layer shows that it enrichs in this segment due to the volcano events. Moreover, the comparability of the partition mode shows that the volcano-genic materials and the basalt are of the same source.③low Eu anomaly different from the high Eu anomaly of medium-acidic tuff in Meishan section, that show that their formation is different④there are plentiful basalt detritus.⑤there are enrichment of the Ti element.⑥the lower content of siderophile element of Ni and Co, especially in the transitional layer, show that there were not extraterrestrial events and big scale basic or ultrabasic volcano eruption events in this area. These characteristics show that the sedimentary source of Xuanwei Formation and Kayitou Formation is basalt.

1稀土元素配分模式与玄武岩类似；(2)稀土元素含量在异常层的增加反映了火山事件导致了它在该段地层中的富集，而配分模式的相似性反映了火山物质来源与玄武岩具有同源性；(3)低"Eu"异常区别于煤山剖面的中酸性凝灰岩高"Eu"异常模式，说明界线粘土岩成因也不同于煤山剖面的界线粘土；(4)大量的玄武岩岩屑；(5)Ti元素的富集；(6)亲铁元素Ni和Co含量较低，特别是在界线异常层含量降低，表明本区在界线处可能并不存在地外事件和大规模基性、超基性火山喷发事件，这些特征反映本区宣威组和卡以头组物质来源主要为玄武岩。

Zirconium containing MCM-41 molecular sieves with high surface area, good crystallinity and Si / Zr ratio from 20 -∞ were synthesized in a near neutral condition by using a sodium silicate as silicon source and a zirconyl nitrite as zirconium source.

MCM - 41与传统分子筛比较，最突出的特点是具有 1～ 5nm直径的孔道和 1 0 0 0m2 ·g- 1 左右的比表面，如此宽孔道尺寸的固体材料对于大分子的吸附和催化具有潜在的应用前景[1 - 3] 。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了