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But war is not the only cause of large-scale death. 700 years ago a terrible disease called the Bubonic Plague killed more than 40 million people.

可战争不是大规模死亡的唯一成因。700多年前的一种叫黑死病的可怕疾病夺走了超过4000万人的生命。

In this paper, different leaching procedures were used for the chondrules and chondrule fragments of Semarkona, and the U-Th-Pb compositions of leachates and residues were analyzed by TIMS method. The residues normally give higher 206Pb/204Pb ratio, suggesting higher radiogenic Pb compositions. These residues form a Pb-Pb isochron, and give an age of (4566.9±5.8) Ma with MSWD of 26, consistent to the weighted average age of 207Pb/206Pb model ages.

在本文中,对Semarkona中球粒用不同的化学浸洗流程,并测定浸洗溶液和残渣中U-Th-Pb同位素组成,其中浸洗后的残渣均给出相对较高的206Pb/204Pb比值,表明其中含有较多的放射成因Pb同位素组成,这此残渣构成Pb-Pb等时线,给出年龄为(4566.9±5.8)Ma,MSWD=26,与207Pb/206Pb模式年龄在误差范围内一致。

Based on the analysis of the environmental condition of atmosphere in the city of Yinchuan , the article probes the reason of the pollution of atmosphere.

在分析银川市大气环境现状的基础上,讨论了大气污染的成因;运用环境学的基本理论和基本思想,提出了控制污染的具体措施

The paper consists of five chapters, Chapter One: Introduction, the part expounds the background meaning of the study on new product development flow and the method designing of study contents; Chapter Two: the part expounds the classification of new product development flow and relevant theories; Chapter Three: the part analyzes current status, existing problems and causes in new product development in the Coco Palm Group; Chapter Four, relying on the analysis conducted on the success and failure in new product development in relevant companies, the part summarizes the key factors for the success of new product development; Chapter Five, the most significant part in the paper, namely the rebuilding of new product development flow in the Coco Group.

本文共分为5章。第一章绪论,阐述了研究新产品开发流程的背景意义研究内容的方法设计;第二章,阐述了新产品开发流程分类及相关理论;第三章,分析了椰树公司新产品开发的现状、存在问题及成因分析;第四章,通过例举相关行业公司新产品开发成功和失败的案例分析总结新产品开发成功关键因素;第五章,对椰树公司新产品开发流程进行再造研究。

A knowledge-based correction term in the objective function is proposed. The relationship between state estimatin and parameter estimation is analyzed. A strategy of projecting the objective function from the augmented solution space to the parameter space is proposed and proved.

该文提出基于经验知识的参数估计目标函数修正项,导出状态估计与参数估计目标函数极值的关系,由此提出将目标函数从增广解空间垂直投影到参数空间的估计策略,并指出参数估计偏差的成因。

Warm Tip: soft keratin function, it may be achieved by removing the aging cutin may also be distinguished by adding moisturizing ingredients to make skin soft and moist, so choose Skin water time to cause trouble according to their own skin to choose.

温馨提示:柔软角质的功能,有可能是通过质来实现,也有可能是通过添加了卓越的保湿成分来使肌肤润泽柔软,所以在选择柔肤水的时候要根据自己的肌肤困扰成因来进行选择。

The morphology, occurrence and components of dawsonite were described, and the paragenetic sequence of sandstone and origin of CO2 forming dawsonite were investigated by polarization microscope, scanning electron microscope, Xray diffraction and MAT251 stable isotope mass spectrometer.

利用偏光显微镜、扫描电镜、X射线衍射分析仪和MAT251稳定同位素质谱仪,详细描述了片钠铝石的形貌、产状和成分,确定了含片钠铝石砂岩的成岩共生序列和形成片钠铝石的CO2的成因。

But, further, deism not only distinguishes the world and God as effect and cause; it emphasizes the transcendence of the Deity at the sacrifice of His indwelling and His providence.

但是,进一步的,自然神论不仅区别於世界和上帝的影响及成因;它强调超越神在牺牲他的留置和他的普罗维登斯。

This reflects that the continent is the piece-togrther block of many blocks and the continent was conserved, and evolved and suffered many times tectonic reworking, which made the integrated strength of the lithosphere with apparently differentness and variation in different tectonic units and different location of the same unit.

这也充分反映大陆是多块体的拼合体,长期被保存、演化,遭受多次构造变动使之总体岩石圈综合强度随不同的构造单元与同一单元不同构造部位具有明显的差异和多变,从而也反映了大陆形成、演化成因和结构与组成的特殊性与复杂性,区别于大洋岩石圈。

With the analysis of Quaternary geological environmental evolution, the riverbed overburden is classified as alluvium, river fluvial aggradation, glaciation aggradation, periglacial solifluctional aggradation, gravity aggradation, lacustrine aggradation and diluvium aggradation.

通过第四纪地质环境演化的分析,把覆盖层的成因类型划分为水成系列、冰川系列、冰缘系列、重力系列和共生系列五大类,其中又按搬运动力的不同特点分为冲积为主的类型、河流加积类型、冰川加积类型、冰缘冻融泥流加积类型、重力堆积加积类型、洪积加积类型、湖积加积类型等七种亚类。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力