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The lithologies of the Al rich rocks under ultra high pressure metamorphism in central China are characterized by kyanite topaz quartzite which has special mineral associations of kyanite, rich topaz,Mg rich chloritoid,coesite and diaspore.
我国中部在超高压条件下形成的高铝质变质岩石,以蓝晶黄玉石英岩为特征,具有以蓝晶石、富水黄玉、富镁硬绿泥石、柯石英、硬水铝石等为代表的高压-超高压变质矿物,矿物组合主要为蓝晶石+黄玉+石英、蓝晶石+蓝刚玉±富镁硬绿泥石等。
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Wall-rock alteration green color stone, mainly composed of hoepfnerite, epidote, diopside, biotite, quartz, and chlorite etc.
富矿体两侧发育流体交代岩,这些绿色岩石是块状富矿体和角砾状富矿体的主要容矿岩石,这与热水沉积形成的层纹状锌矿具有显著差异。
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We summarize the study of geochemistry of the Co rich crust, and explain the diffusion of elements in the Co rich crust and the exchange with ambient seawater. Besides, we discuss the effect of phosphatization and substrate rocks on the composition of the Co rich crust. We also introduce the application of stable isotopes (including the stable isotopes of Pb, Nd, and Hf), radioactive...
概述了富钴结壳地球化学的研究成果阐述了富钴结壳中元素的扩散及与周围海水的交换,基岩和磷酸盐化事件对富钴结壳组成的影响分别介绍了稳定同位素(Pb、Nd和Hf的稳定同位素)、放射性同位素(Be、U和Th的放射性同位素)及元素(常量和微量元素、稀土元素)在富钴结壳古海洋学研究上的应用。
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The research leads to following conclusions: A The age of the ferromanganese contacting with the upper phosphate layer is 14.9 Ma; B The crust had been grown continually without sedimentation interruption since 14.9 Ma, suggesting that it can be used to rebuild the environment of palaeo-ocean and palaeo-climate from 14.9 Ma to 0 Ma; C The sedimentation interruption between the ferromanganese and the upper phosphate layer lasted around 4 Ma; D Between 19 Ma and 22.7 Ma, great phosphatization event happened in this area, which might cause the sedimentation interruption from 22.7 Ma to 14.9 Ma; E The ferromanganese crust began to grow from 75 Ma.
对超微量Sr同位素测试得到的富钴结壳磷酸盐年龄进行分析认为:(1)上部富钴结壳与上层白色磷酸盐化层接触部位的年龄为14.9 Ma;(2)自14.9 Ma以来,结壳的生长是连续的,沉积间断发生的可能性非常小,该样品可以用来进行14.9 Ma年以来古海洋、全球变化的重建工作;(3)上层白色磷酸盐化层与其上部的富钴结壳之间存在4 Ma的沉积间断;(4)19 Ma~22.7 Ma左右在该区发生过大规模的磷酸盐化作用,磷酸盐化作用可能造成磷酸盐化时期(19 Ma~22.7 Ma)和之后4 Ma(19 Ma~14.9 Ma)富钴结壳的沉积间断;(5)结壳的初始生长年龄在75 Ma左右;(6)老结壳的生长速度要远低于新结壳的生长速度。
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This paper includes three parts:preparation of fullerene,the theoretical design and synthesis of novel pyrrolidine nitro-derivatives,the investigation of the application of fullerene and its derivatives in high energetic explosives and nitramine modified double base propellant.
本论文主要包括三部分:富勒烯原材料制备研究,新型硝基富勒烯吡咯烷衍生物的理论设计与合成研究,富勒烯及其衍生物在高能炸药和硝胺改性双基推进剂中的应用研究。
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Cast : Neil Dudgeon as Brother Joshua, Bill Milner as Will Proudfoot, Jessica Hynes as Mary Proudfoot, Anna Wing as Grandma, Will Poulter as Lee Carter, Tallulah Evans as Jess Proudfoot,..
演员:尼尔达吉恩约书亚为兄弟,比尔米尔纳作为意志普劳德富特,杰西卡海因斯的玛丽普劳德富特,安娜荣的奶奶,李会保尔为卡特,塔卢拉埃文斯作为尔杰斯普劳德富特,。。。
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Within the operating range in this study, the oxygen transfer coefficient using enriched oxygen aeration is 1.3 times higher than that in conventional oxygenic aeration.
采用富氧膜法制备O2体积浓度为28.8%的富氧气作为曝气源,研究了富氧气在水中的传质特性,考察了富氧气曝气对有机物降解的效果,研究了污水浓度、曝气量等因素对生物反应器效能的影响。
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For example, alkaline elements can affect diffusion velocity of Zr, Si and O ions although these alkaline elements cannot exist in crystal structure of zircon. However, K rich media and Na rich media exert different effects on the growth of crystal form: in the K rich media, growth speed of prism faces in the vertical direction is much higher than that of pyramid faces, and {111} growth speed in the vertical direction is higher than {311},which decides the formation of bipyramids dominated by {311} pyramids; in the Na rich media, both prism and pyramid grow to a certain extent, but the former is smaller than the latter.{100} growth speed in the vertical direction is lower than {110}, while {111} growth velocity in the vertical diredtion is lower than that of {311},resulting in the growth of the crystal form characterized by {100} short prism and {111} pyramid.
例如,尽管碱性元素并不进入锆石晶格,但它们可以影响Zr、Si、O离子的扩散速度,但是富钾和富钠的介质对锆石晶形发育的影响是有差别的,表现为:在富钾的介质中,将导致柱面的法向生长速度较锥面快得多,而锥面中,{111}的法向生长又较{311}快,由此决定了形成以{311}锥为主的双锥状晶体;在富钠的介质中,柱面和锥面都有一定程度的发育,但前者弱于后者,而柱面中,{100}的法向生长较{110}慢,由此决定了形成以{100}柱和{111}锥为主的短柱锥状晶体。
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The experiments on 11 crops cultivation, including wheat, rapes, sweet potato sesames, leeks and so on, were carried out in Jingzhou as selenium resources from selenium mineral powders, complex fertilization of containing abundant selenium and Na2SeO3 in high selenium area.
以源自高硒区的硒矿粉、富硒复混肥和Na_2SeO_3为硒源对小麦、油菜、红薯、芝麻、韭菜等十一种作物在荆州进行了异地富硒栽培试验和提高硒矿粉利用率的试验,得出如下结论: 1。应用硒矿粉、富硒复混肥和Na_2SeO_3作为硒源均能提高试验作物的硒含量水平,以土壤施入和叶面喷施的方式均能升高作物的含硒量,可以作为富硒栽培的一个重要措施。
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For its special conditions of production, fullerene is hardly yielded through the process of the common earth environment and dynamic geology. The first presence of fullerene in Shungite, Russia in 1992 aroused the interest of studying natural fullerene.
富勒烯的形成条件特殊,普通的地球环境和地质过程不利于富勒烯的生成。1992年天然富勒烯在俄罗斯前寒武纪地层桑加岩中被发现,引起了人们对天然富勒烯研究的兴趣。
- 推荐网络例句
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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。
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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。
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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