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Yellow River originate in the Qinghai Bayan kela hill northern foothills about drainage in the series, more than 5,400 meters above sea level, surrounded by mountains nival.

黄河发源于青海巴颜喀拉山北麓的约占宗列渠，海拔五千四百多公尺，四周高山终年积雪。

Histological structures of bursas of Fabricius were observed at the different developmental stages from chicken embryoes to chickens. The results were as follows. The bursa of Fabricius began to develop on the 13th day of post-hatching and its cell aggregated into the nodosity clique underneath the epithelium mucosae. On the 15th day of post-hatching, those cell cliques were surrounded by the flat epithelium and formed the basic structure of folliculus lymphaticus. The number of lymphocytes in the folliculus lymphaticus increased gradually, and the medulla and cortex of a majority of folliculus were not discriminated obviously. Until on the 7th day for chickens, the medulla and cortex of folliculus formed completely and the number of folliculus increased significantly. From 21 to 35 days old, the folliculus lymphaticus transformed from polygon into rectangle. Mucosa epithelial cells increased gradually and their cytoblasts arranged compactly into aline in the basilar part on the 35th day.

本研究观察了从鸡胚到出壳后的不同生长发育阶段法氏囊的组织结构，结果表明：胚胎13日龄时，法氏囊开始发育，粘膜上皮下形成结节状细胞集团；胚胎15日龄，聚集的细胞集团形成初始的淋巴滤泡；胚胎18日龄到出壳后1日龄，滤泡内淋巴细胞数量增多，多数滤泡髓质和皮质界限仍不明显；7日龄雏鸡法氏囊髓质皮质分界清晰，滤泡数量显著增多；21日龄到35日龄，滤泡由多边形逐渐转变成长方形；在35日龄时，粘膜上皮细胞逐渐增多，排列紧密，细胞核紧密排列成直线位于基底部。

With the development of economy, we are surrounded by noise and something.

随着经济的发展，我们周围的噪音和一些东西。

Living matter lives surrounded by, and ceaselessly interacts with, its non living environment

生活物质生活在它周围的无生命环境中，并与之不停地相互作用。

It is found that the nanocrystalline CeO〓: Er was surrounded by the noncrystalline phase.

光声光谱在保持纳米材料表面状态不改变的前提下，分析了不同粒径的CeO〓：Er的光谱性质。

West, North, East, surrounded by the mountain formation of the central Songnen Plain, the Northeast Plain principal.

西、北、东三面环山形成中央的松嫩平原，为东北平原的主体。

It is also surrounded, tothe north and east, by the hilly landscapes of the famous Valpolicella and Soave wine districts.

在过去漫长的岁月中，这座写满仇恨和战争历史的小城一直被人们看作军事重镇、历史古城。

The island is surrounded by the atlantic ocean to the west, and the north sea to the east.

这个段落主要是采用由外到里的空间顺序法进行描写的。

A minute structure in seed plants, containing the embryo sac and surrounded by the nucellus, that develops into a seed after fertilization.

胚珠种子植物的一个小的结构，含有胚囊并被珠心所包围，施肥后长成种子

The ovule is orthotropous and crassinucellate, nucellus is surrounded by three envelopes.

胚珠直生，厚珠心，珠心被内、外珠被以及盖被等三层被膜所包围。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。