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Based on the Reserve Database of Mineral Resources in China (1997), this paper established the geological model, grade model, tonnage model and grade-tonnage model of 394 placer gold deposit s in China, which involve frequency histograms and cumulative frequency distributing graphs.

依据"1997年全国矿产储量数据库"资料,对全国 394个砂金矿床建立了地质模型、品位模型、吨位模型、吨位—品位联合模型,模型类型包括频率直方图、累积频率分布图;分别总结了砂金矿床品位及吨位分布的典型数学地质特征。

Shanxi Golden Diamond Petroleum Drill Collar Tools Manufacturing Co., LTD Subordinates in Third geological engineering bureau of Shanxi geological prospecting institute.Is a whole people state-owned enterprise, professional manufacturer of oil drilling.

山西金钻石油机具制造有限公司隶属于山西省地质勘察局第三地质工程勘察院,是一家全民所有的国营企业,专业石油钻具制造商。

Application of partially discontinuous fitting function in analysis and display of geological curve surface, Advancement of Chinese mathematical geology.

局部间断拟合函数在地质曲面分析和显示中的应用,中国数学地质进展。

Application of partially discontinuous fitting function in analysis and displayof geological curve surface, Advancement of Chinese mathematicalgeology.

局部间断拟合函数在地质曲面分析和显示中的应用,中国数学地质进展。

It is very important and necessary to discover and understand floodwater geological records.

因此,利用地质记录延长洪水时间序列,从地质记录中认识洪水的发生规律,显得非常重要和必要。

This thesis expounds the causes of geological calamity and region geological calamity forewarning principle.

论述了地质灾害的成因和区域地质灾害预警原理。

Mine is too ancient geological ore mixed granite and granite porphyry, ores major components of SiO2, accounting for 76.54%, Al2O312.56%, Qianhui, the fine-grained gray granite block change crystal structure, long-ramp of 27 -- 36 percent, longer-35-42 percent, 20-29 percent quartz, rock weighing 2.6 T/m3, hardness of 5.9-6.3 degrees, the porosity of 0.62-1.03 percent, compressive 1670-1931 kg/cm2, bending 141-167 kg / cm2, ore reserves 2000 investigation Grade D geological reserves 10.02 million cubic meters, designed for the use of reserves of 7.99 million cubic meters; mining area of 0.4 cubic kilometres, the highest elevation of 151 meters, the minimum 56 meters, hilly slope, with perennial Shuixi, More sparse vegetation.

矿山地质矿体属太古代混合花岗岩及花岗斑岩,矿石主要成分SiO2,占76.54%,Al2O312.56%,浅灰,灰白色的细粒花岗变晶块状构造,斜长石含量27-36%,更长石35-42%,石英20-29%,岩石体重2.6T/m3,硬度5.9-6.3度,孔隙度0.62-1.03%,抗压1670-1931kg/cm2,抗折141-167kg/cm2,矿石储量2000勘测D级地质储量1002万立方米,设计利用储量为799万立方米;矿区面积0.4立方千米,最高海拔为151米,最低56米,丘陵缓坡,无常年水溪,植被较稀疏。

By use of the Fischer-Tropsch reaction in a C-H-O system, we discussed the relationships between inorganic CO〓 and some physical chemistry conditions, such as Oxygen flee degree , temperature, pressure, other objects consistency and catalyzer. a when T=200K~2000K, if f〓>0, the reaction of generating CO〓 will be dominant, CH〓 hardily exists; b when T>1000K, CH〓 is not propitious to exist, carbon in system almost exists in form of CO〓; c the more pressure, the more CO〓 is propitious to exist; d the more consistency of CO, O〓 and H〓O, the more CO〓 is propitious to exist, the more consistency of H〓, the more CH〓 is propitious to exist.

依据C-H-O体系费托反应的简化模型,讨论了氧逸度、温度、压强、其它物质浓度、催化剂等物理化学条件对无机成因CO〓生成的影响,从理论上讨论了在地质环境中,无机成因CO〓存在的物理化学条件:1在T=200K~2000K的温度范围内,体系中一旦氧逸度>0,生成CO〓的反应将占绝对优势,CH〓几乎不可能存在;2T>1000K时,不利于CH〓形成,使体系中的碳主要以CO〓的形式存在;3体系压强越大,越有利于CO〓的形成;4反应物CO、O〓、H〓O的浓度越高,越有利与CO〓的存在,H〓的浓度高有利于CH〓的形成。5地质成藏作用可以经历很长的地质年代,这足以补偿矿物岩石中的Ni、Mo、Fe、Co、Ru等催化性能的降低及其它动力学条件的不足,使得费托反应可能发生,从而生成无机成因的CO〓和烃类。

Composition of ore minerals, insert relationship,colloid structure,genetic succession and inclosure temperature measurement etc.

从成矿地质条件、控矿因素、矿体形态、矿石矿物组分、嵌布关系、胶状结构、生成顺序和包体测温成果等,全面阐述铜矿的基本地质特点。

Tiefeng rock tunnel is a control project in Wanzhou-Kaixian expressway.The length of the tunnel exceeds 6?000m.The geological conditions of the tunnel are very complex,including groundwater ingression,firedamp,gypsum strata,soft rock deformation, rock outburst etc.The construction is difficult.Some construction methods are studied for Tiefeng rock tunnel to pass the complex zone mentioned above.

铁峰山2号隧道是重庆万-开高速公路控制性工程之一,隧道左右线长度均超过6 000m,隧道穿越的地层复杂,存在突水、煤层瓦斯、煤巷采空区、石膏岩地层、软岩变形、岩爆等不良地质现象,工程地质条件极为复杂,施工难度大,施工防护要求高。

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但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。