榆林

In this article, the influence of sulfur content on the direct liquefaction reactivity of long flam coals was studied in the laboratory autoclave.

摘要： 利用实验室高压反应釜，研究了榆林横山樊河长焰煤中硫含量对煤直接加氢液化反应的影响。

The Sophora alopecuroides L. in Yulin region spreads widely, anti-drought, foodless for animals and stable product, moreover, where there is vulgar grass place, there is plenty of Sophora alopecuroides L.

榆林沙区苦豆子分布面积广泛，蕴藏量丰富，加之耐干旱、牲畜不食、产量较稳，而且愈是低等级草牧场、荒漠、沙漠边缘，愈是生长较多的地方。

To "Stephen Yulin" dished out by co-operation "Hydrangea."

为了"斯蒂芬榆林"抛出合作"绣球"。

In order to draw a circle around coarse sand concentrated coming area in sediment-laden and coarse sand area of the middle Yellow River,the paper makes macro analysis on the factors of geological structure,lithology of stratum,category of landforms and hydrometeorology of the sediment-laden and coarse sand area in the middle Yellow River and regional difference related with coarse sand production.

为在黄河中游多沙粗沙区确定粗泥沙集中来源区，从黄河中游多沙粗沙区地质构造、地层岩性、地貌类型、水文气象等因素与产粗泥沙关系的区域差异对粗泥沙集中来源区进行了宏观判析，认为在黄河中游多沙粗沙区范围内，吴旗—志丹—延安—延长一线以北、东胜—准格尔—清水河一线以南、吴旗—榆林—神木—大柳塔一线以东至晋西北黄河沿岸的范围是侵蚀最为严重的地区，也是粗泥沙集中来源区的宏观待选范围。

Yulin operations in Southern District, the jurisdiction of the Second District more gas, and a large number of alcohol injection of natural gas will not only increase production costs, At the same time to the operation area of the site management has brought a great deal of inconvenience.

榆林南区作业二区管辖气井较多，且大量注醇不但增加了天然气生产成本，同时给作业区的现场管理带来了极大的不便。

The structure of it stays almost as the early pattern: the lane paved by stone,the quadrangle of gray brickwork,and the delicate copper ring of wooden doors and windows,which all show old-fashion and massive style and features of the Ming and Qing dynasty.

榆林老城的格局基本上还保留着早先的样子：石子铺就的小路，灰色砖房的四合院，木制门窗上的精美铜环，无一不透出古朴厚重的明清风貌。

Hongjiannao lake gives a new chance to the relict gull Ordos subpopulation and established the foundation for Ordos subpopulation to develop into the biggest, most stable and most living population in the world.

陕西省榆林市神木县红碱淖湿地的遗鸥数量从2000年调查报告初步估计的约200只发展到了2005年测定的11000多只，形成了世界上最大的遗鸥繁殖种群。

Southwest department in Davao Islands follows the sea sea beach flatness, the sunlight is ample, evaporating to have great capacity, is a good place that develops the salt industry, have already set up LIN2 DENG3's large saltworks of sea of Yingko, east and 榆s currently.

海南岛西南部沿海海滩平坦，阳光充足，蒸发量大，是发展盐业的好地方，目前已建有莺歌海、东方和榆林等大型盐场。

Based on the meteorological observation data and the vegetation index data in Yulin,synchronousness relationship of vegetation index and sandstorm activities were analyzed,the results indicates that,Intra-annual changes of vegetation covers and sandstorm activities are evidently inverse synchronous,which may conduce to reducing the wind-break and sand-fixing function of vegetation.

以榆林市为例，利用气象观测和植被指数数据，对植被覆盖与沙尘暴活动发生的时间同步性关系进行了分析，结果显示：植被覆盖与沙尘暴活动存在着年内的时间不同步性，严重制约植被防风固沙生态功能的发挥；沙尘暴日数与植被指数的年际变化呈现出反相关系证明了植被覆盖对沙尘暴活动具有很强的防护作用。

The large-scale soil animal sorts were gathered by hand, while the medium and the small soil animals were separated by the funnel law and the funnel law, totally 314 soil animals were caught, which subordinated separately in the mollusk gate ,the annulate gate and 3 phyla 4 class 12 order results showed that the ball tail phyla and the hymenoptera prospect, tubing up 57.54% of the total phyla ,are the dominant class groups and main part of soil animals in this area; The hymenoptera ant class, the coleoptera larva, the arachnids, man kind of, the gastropoda is the common class group the hymenoptera are the common class groups .these result indicate that the community multiple of soil animal's degreases progressively basically among different soil strata sing soil depth and has an obvious aggregation .

结果表明：弹尾目和鞘翅目成虫为优势类群，占全捕量的57.54%，是该区土壤动物的主体。膜翅目蚁类、鞘翅目幼虫、蜘蛛类、螨类、腹足类等为常见类群。上述结果显示土壤动物群落的多样性在不同土层中基本上是随土层深度的增加而递减，并且表聚性明显。关键词：枣园；土壤动物；群落多样性；陕西榆林

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。