南

This article outlines the progress of ancient Chinese lenses from the Pre-Qin Period to the Five Dynasties, and discusses mainly two arguments: First, the"yangsui" recorded and narrated in Lun Heng by Wang Chong of Eastern Han Dynasty may be a plano-convex glass lens; secondly, the"four mirrors" recorded and narrated in Tanzi Hua Shu by Tan Qiao of Southern Tang Dynasty may be a plano-convex lens, a biconvex lens, a transparent planeparallel plate and a concave-convex lens respectively, but what kind of tra...

本文概述了中国古代透镜从先秦到五代的发展进程，着重从古代文献和出土文物的研究出发，结合中国古代社会经济发展水平，论证了东汉王充《论衡》中记述的阳燧可能是玻璃平凸透镜；论证了南唐谭峭的《谭子化书》中记述的"四镜"可能是平凸透镜、双凸透镜、平光镜和凹凸透镜。作者认为《谭子化书》"四镜"段可能实际上是对中国古代透镜发展的阶段性总结。

The main tasks of the World Health Assembly are to approve the WHO programme and the budget for the following biennium and to decide major policy questions.

网站最上面是WHO的标志：联合国背景下的蛇杖，说明了WHO的归属，右边是语言版本选择和搜索栏，都没什么说的，只是觉得居然没有Chinese vision，有些遗憾，谁给安南打个电话反映一下？

The project site is bound by North Claiborne Street to the south and extends north to Bayou Bienvenue.

项目向南延展到北Claiborne大街向北延展到Bienvenue河口。

Objective: To develop an HPLC method for the determination of hyodeoxycholic acid in Bile Arisaema.

中文摘要：目的：建立胆南星中猪去氧胆酸含量测定方法，为其质量控制提供方法。

The vote was tied after ministers failed to reach a deal with Nick Xenophon, an independent senator from South Australia, who had demanded amendments to the bill to finance improvements to the ailing Murray- Darling river system.

反对者和赞成者势均力敌，此前澳大利亚各部长未能与来自南澳大利亚的独立参议员尼克·色诺芬达成协议。他要求对该法案进行修改，以便资助修缮境况不佳的墨累-达令河水利体系。

Much of South Dakota, with the notable exception of the Black Hills, is dominated by a temperate grasslands biome.

大部分的南达科他州，是个明显的例外布莱克山，主要是由温带草原生物群落。

The journal dedicates to the studies in all aspects of the botany, mycology and phycology of the South Pacific, Australia, South America, southern Africa and Antarctica. Research areas include biosystematics and biogeography, ecology, physiology and biochemistry, genetics and reproductive biology, structure and development, ethnobotany, palaeobotany, bryology, lichenology and plant pathology etc.

该刊致力于南太平洋、澳大利亚、南美、南非以及南极洲的植物学、真菌学和藻类学各方面的研究，研究领域涉及生物系统学、生物地理学、生态学、生理学、生物化学、遗传学、生殖生物学、机构与发育、人类植物学、古植物学、苔藓学、地衣学以及植物病理学等等。

Their feet were thought to be very much like ours, suggesting they had mastered bipedalism.

此前，研究人员曾认为，粗壮型南猿的脚和我们的很相似，并由此认为他们可以熟练地用两只脚行走。

Their feet were thought to be very much like ours, suggestingtheyhad mastered bipedalism.

此前，研究人员曾认为，粗壮型南猿的脚和我们的很相似，并由此认为他们可以熟练地用两只脚行走。

Futian Mangrove bird sanctuary is located in Shenzhen, South Bay north-east, and Hong Kong Mai Po River a protected area which is separated from a total area of 280 hectares, is one of China's six major wetlands.

福田红树林鸟类保护区地处深圳市南深圳湾东北部，与香港米埔保护区一河之隔，总面积约280公顷，是我国六大湿地之一。

If you are committed to an education career, then the Master of Arts in Education from Ashford University is for you.

如果你是致力于教育事业，那么，艺术教育硕士学位阿什福德大学是给你的。

objective:to explore the expression of survivin protein and its mrna in rectal cancer and their clinic significance.

目的：研究凋亡抑制因子survivin蛋白及其mrna在直肠癌组织中的表达及其与临床病理关系。