下界

A Contrast-enhanced CT scan of the upper abdomen shows a saclike mass of dilated jejunal loops between the pancreatic head and stomach. The descending mesocolon and stomach are displaced laterally. The dilated inferior mesenteric vein is located at the anterior border of the encapsulated loops.

a 上腹部增强CT扫描显示胰头和胃之间见囊状成簇扩张的空肠，降结肠系膜和胃被推移到侧方，扩张的肠系膜下静脉是疝囊内肠襻的前界。

METHODS: Fetal liver was obtained sterilely. Monoplast suspension was collected by collagenase digestion and mechanical separation, and then centrifuged using 1.070 g/mL Percoll separating medium and 1.077 g/mL Ficoll separating medium. Cells achieved from the interface of separatory liquids were cultured in DMEM/F12 medium, supplemented with 0.1 volume fraction of fetal bovine serum, 20 μg/L hepatocyte growth factor and 40 μg/L epidermal growth factor, for 9 days.

无菌状态下取出胎儿肝脏，以胶原酶消化法和机械分离法获得胎儿肝脏来源单细胞悬液，分别采用1.070 g/mL Percoll分离液和1.077 g/mL Ficoll分离液进行密度梯度离心，吸取界层细胞，添加含体积分数为0.1 FBS、20 μg/L肝细胞生长因子、40 μg/L表皮生长因子的DMEM/F12新鲜培养基诱导9 d。

In the term of sedimentary features of Neopaleozoic in south of North China Basin, lateral variation of sedimentary facies was studied selectively in Benxi-Taiyuan Formation, Shanxi Formation, Lower Shihezi Formation, Upper Shihezi Formation and Shiqianfeng Formation. Lithofacies paleographic features and the sedimentary evolutionary process of Late Paleozoic in south of North China Basin were worked also.

根据华北盆地南部上古生界的沉积特点，按本溪组—太原组、山西组、下石盒子组、上石盒子组和石千峰组5个层组分别开展了沉积相的横向变化对比研究，并以此为基础探讨了华北盆地南部晚古生代的岩相古地理特征及其沉积演化过程。

The typical products consist of the series products of ECS mainboard,Maxtor HD, Pure Face LCD, I-Buddie laptop, overfrequency PC, Eway PC, Orbbit digital camera, E-Buddie wireless network card and LifeView video card. The affiliated agencies was established successively in some major cities, such as Shenzhen, Shanghai, Chengdu, Wuhan, Xi'an, Tianjin and Nanjing.

伴随着精英品牌的成功打造，讯宜的产品线不断增长，目前旗下产品包括精英主板、迈拓硬盘、纯净界液晶显示器、I-Buddie移动PC、超能PC、易纬品牌电脑、orbbit数码相机、精英小霸王闪存盘、BUFFALO无线网卡、朗视视频卡等系列产品。

In the temproal-spatial′distribution, its source rocks is mainly Palaeogene, secondly Cretaceous and Jurassic of Mesozoic, Triassic, having mudy rocks and coal-rich, their organic carbon being 0.2% and 0.4% respectively.

提出了过渡带气综合判识标志：时空分布上，其源岩主要为下第三系，其次为中生界白垩系和朱罗系、三叠系，以泥质和煤系有机质最丰富，有机碳丰度为0.2％、后者为0.4％。

This paper analyzes protruding of integer mould cutting edge burst crack of electric machine blank under cur- rent patternmaking conditions,puts forward solving method to provide reference for mould worker.

文章就电机冲片整型模在当前制模工艺条件下所出现的凸模和刃口频繁崩裂现象进行一些定性分析，阐述了作者的观点和解决问题的方法，以供模具界业人士参考。

Influenced by the personalized services from commercial websites, researches on personization commence in the byways of library.

在商业网站个人化服务的带动下，图书馆界开始进行一波波的个人化之研究。

We prove under the local error bound condition that the Levenberg-Marquardt method with this parameter converges quadratically to a solution of the system of the equations by the technique of the singular value decomposition of the Jacobi matrix.

利用Jacobi矩阵的奇异值分解技巧，我们证明了此时在局部误差界条件下，Levenberg-Marquardt方法产生的迭代点列局部二阶收敛于方程组的某个解。

Facing appeals of constitutionary-minded intellectuals and officials. Qing government reformed the bureaucratic system and the Eight Banner system in order to remove boundaries between Manchus and Han: administratively, occupationally, residentially, and socially. Authough these measures took positive parts in pushing political and social changes, Qing government was doomed not to accomplish dual historical tasks of political and national confirmination.

在资产阶级立宪派和赞同立宪官僚的吁请和擘画下，清政府一则从变革官制入手，渐次删除满汉分缺，划一满汉升途，以塞众口&畸轻畸重&之指责；一则从变通旗制出发，逐步消除满汉之间在居住、交产、婚姻、司法、职业、教育、姓氏称谓、风尚习俗及社会控制体系诸方面的藩篱和经界，以敦情好而泯嫌隙。

The result expressed that under the concentration of 0.2mg/mL, the 6 compounds are all active to Sarcina lutea, ME-1, MT-6, MT-land MT-7 are active to Bacillus megaterium, to Escherichia coli, only MT-2 is active. The dimeric natural products are intensively existed in botany, most of them have the obvious biological activities. They have been concentrated on in recent years, and they are one of the compounds to which are enjoyed great popularity in natural product.

结果表明，在浓度为0.2mg/mL的条件下，六种化合物对藤黄八叠球菌均具有明显抑制作用，ME-1、MT-6、MT-1、MT-7对巨大芽孢杆菌有抑制作用，MT-2对大肠杆菌有抑制作用，对绿脓杆菌和枯草芽孢杆菌六种成分均无抑制作用；二聚体化合物在植物界广泛存在，多数二聚体天然产物具有显著的生物活性，引起人们的重视，是天然产物化学界研究的热门化合物之一。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。