查询词典 uranium lead

In alkali metasomatic rocks, potassium is in reverse correlation with gold; and sodium is in reverse correlation with uranium, it is very important to ore-formation of uranium and gold.

研究中还认识到，在碱交代作用形成的碱交代岩中，钾与金负相关，钠与铀负相关，这对铀、金成矿有着重要的意义。

But minable uranium deposits can hardly formed in this period because of absence of abundant uranium-rich groundwater and strong absorption of humus and magnalite.

然而这一阶段由于缺乏大规模富铀地下水的注入，以及腐殖质和蒙脱石强的吸附能力，故难以形成具有工业价值的铀矿床。

Pellar TC%Fuciarelli AF%Ejnik JW Distribution of uranium in rats implanted with depleted uranium pellets 10.1093/toxsci/49.1.29 Toxicological Sciences , 1999,1

李蓉%艾国平%徐辉%任泂%楼淑芬%程天民%粟永萍%郑怀恩%蒋建新%黄跃生吸入贫铀粉尘和/或嵌入贫铀片大鼠体内铀的分布第四军医大学学报， 2004，6

Xiangshan volcano-intrusive complexes is the wall rock of the biggest volcanic-rock uranium ore deposit in China, and the main body is rhyolitic porphyroclastic lava, accompanied by hypahyssal or ultra-hypabyssal intrusive rocks such as dacite-porphyry and granite-porphyry Jiulongzhang volcano-intrusive complexes are dominantly rhyolitic welded tuff, accompanied by dacite-porphyry and quartz monzonite-porphyry, and so on, and the uranium resources are being assessed.

相山火山－侵入杂岩是华南地区最大的火山岩型铀矿赋矿围岩，其主体岩石为流纹质碎斑熔岩，浅成－超浅成侵入岩有英安斑岩、花岗斑岩等；九龙嶂火山－侵入杂岩的铀资源潜力尚待评价，主体岩石为流纹质熔结凝灰岩，浅成－超浅成侵入岩有英安斑岩、石英二长斑岩等。

Thus, SRB were likely to reduce sulfates to sulfides simultaneously with petroleum oxidization, and directly or indirectly reduce hexavalent uranium U to tetravalent uranium U to precipitate pitchblende.

于是，利用烃类作为生存的碳源，硫酸盐还原菌将硫酸盐还原的同时，直接或间接地把六价铀U还原成四价铀U，导致沥青铀矿形成。

Nuclear fuel technology - Determination of uranium in solutions, uranium hexafluoride and solids - Part 2: Iron reduction/cerium oxidation titrimetric method

核燃料技术。溶液、六氟化铀和固体中铀的测定。第2部分：铁还原/铈氧化滴定法

The progress on the extraction of uranium from phosphate rock, lignite, carbonacious shale, uraniferous metallic complex ores and seawater is also described briefly. The progress on the disposal and treatment of effluent and tailings from uranium mill and technical flowsheet without producing wastes is also introduced concisely.

还描述了由磷炔岩、褐煤、碳质页岩、含铀多金属矿及海水提铀的重大新进展，扼要阐述铀水冶的废水及尾矿处理和铀水冶的无废物工艺流程研究的新进展。

That is, U-enriched muscovite peraluminous granites are the uranium source for metallogenesis, and the uranium is mainly devided from the parent granite rocks weathered and denudated, not from the hydrothermal solution derived from the parent granite rocks.

即铀含量较高的晚期二云母过铝质花岗岩是铀成矿作用的铀源，而且，铀源主要来源于被风化并剥蚀掉的那部分母岩，而不是来源于热液流体对现存母岩的交代。

In order to study the reaction kinetics of uranium with CO or CO 2,uranium samples of different forms are obturated in reaction vessels and then CO or CO 2 is filled in. Gases in vessels are analyzed at different storage time.

在一定温度下，将不同形态的铀样品密闭贮存在容器中并充入一定压力的高纯CO或CO2 气体，通过定期测量贮存容器中气体组成，初步研究了铀与CO或CO2 的反应动力学。

Avalon Rare Metals, for example, owns a rare-metals property at Thor Lake in the Northwest Territories. Ucore Uranium, based in Halifax, has a project in southeastern Alaska. VMS Ventures optioned a uranium and rare-earth property in Manitoba. Billingsley's company, Great West Mineral Group of Saskatoon, owns the Hoidas Lake project on the northern fringe of Saskatchewan.

例如，在西北地区托尔湖拥有稀有金属矿的阿瓦隆稀有金属公司；坐落于哈利法克斯，在阿拉斯加东南部有项目的铀核铀矿公司；握有曼尼托巴的铀矿和稀土矿购买权的VMS投资公司；还有比利斯利的公司，在萨斯喀彻温省西北边辉达斯湖有项目的大西部矿业集团公司。

It is suggested that TDS can be used as a new method for the analysis of pedogenesis and climatic change.

总之，热处理过程中磁化率的变化能非常灵敏地反映磁性矿物的转化情况，而且，这种转化往往与样品所经历的土壤化作用强度密切相关，因此，TDS可做为分析成土作用强度和古气候变化的一种新方法。

Therefore, in this chapter, I will research into the conflict and contradiction of the paternity. Also, in this novel, the father's behavior of "He who loves well chastises well." is quite suspicious, one of the reasons is that the father thought his son belonged to him. And then, this thesis quoted Lacan's theory to touch upon that someone who has accepted the concept of patriarchal society, he will be influenced for his whole life. That also reveals that human being has no choice sometimes in this society.

因此本章会先就父子关系的冲突与矛盾做深入的探讨，小说中的父亲似有对儿子爱之深责之切的行为，其原因可能在於父亲将儿子视为所有物所致；其次，论文将引用拉冈相关理论，讨论在父权社会中，不论身分为何，只要是已受父权社会观念根深蒂固影响的人物，终生都将受其所苦，此也揭示出人生存於社会上的无奈。