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         gold 在 礦業工程 分類中 的翻譯結果: 查詢用時:0.199秒
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      gold     
      相關語句
        
          STUDY ON GEOTECTONICS AND GOLD METALLOGENY OF WEST SARAWAK, EAST MALAYSIA
          馬來西亞西砂撈越地區大地構造與成礦學研究
      短句來源
          The Comparative Study on the Content and Metallogenic Signifance of Gold, Molybdenum, Tungsten and Tin in Mantle Rocks from Eastem China
          中國東部地幔巖中的、鉬、鎢、錫含量及其與成礦關系比較研究
      短句來源
          EXTRACTION OF GOLD FROM LOW-GRADE GOLD ORES BY HEAP-LEACHING PROCESS
          用堆浸工藝從低品位礦石中提
      短句來源
          GOLD EXTRACTION RESEARCH BY HEAP LEACHING FROM LOW-GRADE ORE
          低品位礦堆浸法提研究
      短句來源
          AN APPROACH TO THE FLOTATION PROCESS IN THE CONCENTRATING MILL OF JINCHANGYU GOLD MINE
          關于廠峪選廠浮選工藝問題的探討
      短句來源
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        金礦
          Mesozoic Structure Framework and Its Controls on Accumulation and Distribution of Gold Deposits in the Northern Part of Yiwulü Mts., Western Liaoning Province
          遼西醫巫閭山北段中生代構造格架及其對金礦形成富集與分布的控制作用
      短句來源
          Synthetic Information Mineralization Prediction Research of Gold Mines in Sarbulak Region, Fuyun County, Xinjiang
          新疆富蘊縣薩爾布拉克—帶金礦綜合信息成礦預測研究
      短句來源
          Metallogenic Prediction Based on Synthesis Information for Endogentic Gold Deposits in Huma-Mohe Area, Heilongjiang Province
          黑龍江省呼瑪—漠河地區巖金礦綜合信息成礦預測
      短句來源
          Deeo-Space Metallogenic Predication Study and Its Application in Jiaojia Gold Belt of Shandong
          山東省焦家成礦帶深部金礦成礦預測研究及其應用
      短句來源
          Study and Application on the Stability of the Mine Pillars and Surrounding Rocks in Xiadian Gold Mine
          夏甸金礦礦柱及圍巖穩定性分析與應用
      短句來源
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        黃金
          ON SITUATION OF GOLD ORE PROCESSING ABROAD
          國外黃金選冶現狀綜述
      短句來源
          The application of offtake flotation to gold mines
          分支浮選在黃金礦山的應用實踐
      短句來源
          Grey evaluation on the synthetical economic benefit of gold deposit
          黃金礦山綜合經濟效益的灰色評估
      短句來源
          Application of the randon theory of rock movement to mining operation below the building of gold mine
          建筑物下采礦的巖移隨機介質理論及其在黃金礦山的應用前景
      短句來源
          APPLICATION AND DEVELOPMENT OF DOWNWARD CEMENTED CUT-AND-FILL MINING IN CHINA GOLD MINES
          下向分層膠結充填法在我國黃金礦山的應用與發展
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        金的
          A new equipment of recovering placer gold in multi-force field
          在綜合力場中回收砂金的新設備
      短句來源
          The current state of the researches on gold extracting by liquid membrane
          液膜提取金的工藝研究狀況
      短句來源
          Study on thermodynamics of leaching gold by solution of ferric chloride
          氯化鐵溶液浸出金的熱力學分析
      短句來源
          Study on recovering gold from cleaner tailing of placer
          從砂礦精選尾礦中回收金的研究
      短句來源
          Issue of heap construction for mechanized gold extraction by heap leaching process in arid and windy area
          在風大干旱地區機械化堆浸提金的筑堆問題
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      查詢“gold”譯詞為用戶自定義的雙語例句

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      為了更好的幫助您理解掌握查詢詞或其譯詞在地道英語中的實際用法,我們為您準備了出自英文原文的大量英語例句,供您參考。
        gold
      On the condition of weak acidity, the sensitive layer was prepared by electropolymerization of o-aminophenol on a gold electrode in the presence of the template (nicotine).
            
      A sufficient and necessary condition is derived to determine whether the sum of the combinations of Gold functions,
            
      Multipole effects to the opacity of hot dense gold plasma
            
      The contributions of the multipole transitions to the opacity of hot dense gold plasma are taken into account by using an average-atom model.
            
      The method is based on the formation and deformation of double-stranded DNA (dsDNA) membranes on a gold surface.
            
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      The gold-antimony-tungsten deposit of Xiangxi gold mine in Hunan province of China has been mined for a long time. This mine is a bigger one in scale in our country. The integrated gold-antimony-tungsten ore occurs in the layered vein deposit the chief metal minerals are native gold, antimonite and scheelite. Quartz is main gangue mineral. Native gold presents in ultra finely grained and in thin schistose form. Its grains are in the size range of 0.05-0.5mm. Antimonite is encountered...

      The gold-antimony-tungsten deposit of Xiangxi gold mine in Hunan province of China has been mined for a long time. This mine is a bigger one in scale in our country. The integrated gold-antimony-tungsten ore occurs in the layered vein deposit the chief metal minerals are native gold, antimonite and scheelite. Quartz is main gangue mineral. Native gold presents in ultra finely grained and in thin schistose form. Its grains are in the size range of 0.05-0.5mm. Antimonite is encountered in compact massive and acicular form. After grinding to 0.1mm it could not be liberated completely. Scheelite generally occurs coarsely grained. In 6mm grain size liberated grains are found. In the size of 70-100 micron scheelite is fully liberated. The run-of-mine ore is crushed in the three-stage open circuit and then ground in two-stage close circuit to 0.4mm. The mill product is fed to tables to yield gold concentrate, bulk concentrate, low-grade middlings and tailings. The former two concentrates are treated respectively to produce mercury-gold concentrate, antimony-gold concentrate and scheelite concentrate. The low-grade middlings is returned to the ball mill for regrinding. The mill discharge is fed to tables. The tailings are reground in another ball mill. Its product (0.1mm) is first floated for recovering antimony and gold and then scheelite. A antimony-gold concentrate sent to smelter and a rough scheelite concentrate are obtained. The later is cleaned and leached by acid for removing phosphorus mineral to produce scheelite concentrate. A combined flowsheet with gravity, flotation and amalgamation just described has been developed according to the mineralogical charasteristic of the ore mined and has been modified many times. Therefore this flowsheet can be more adapted to fit the raw or in this mine. The technological results of dressing are better.The recoveries of Au, Sb and WO_3 are 86.39%, 96.62% and 75.05% respectively. Thequality of the mercury-gold concentrate, antimony-gold concentrate and scheelite concentrate is stable.

      湘西金礦是我國開采較早,規模較大的金銻鎢礦山。金、銻、鎢共生金屬礦產于層狀脈礦床。主要礦物有自然金、輝銻礦、白鎢礦;脈石以石英為主。原礦經三段開路碎礦,二段閉路磨礦碎磨至-0.4mm,然后入選。采用重選、浮選和混汞的聯合流程產出汞金、銻金精礦和白鎢精礦三種產品。由于上述聯合流程是根據該礦區礦物性質的需要經多次改革而形成的,因此,對該礦區礦石適應性較強,工藝指標較高,產品質量穩定。Au、Sb、WO_3的回收率已分別達到86.39%、96.62%,75.05%。

      This paper outlines some of the recent work of the rock mechanics group at Imperial College, London, in the application of rock mechanics principles to under- ground mining excavation design. Types of instability of underground excavations in rock are discussed and a flow chart setting out the steps involved in design is presented A new empirical strength criterion for jointed rock is discussed and its application illustrated for the case of rock fracture around square drives in a deep- level gold mine....

      This paper outlines some of the recent work of the rock mechanics group at Imperial College, London, in the application of rock mechanics principles to under- ground mining excavation design. Types of instability of underground excavations in rock are discussed and a flow chart setting out the steps involved in design is presented A new empirical strength criterion for jointed rock is discussed and its application illustrated for the case of rock fracture around square drives in a deep- level gold mine. The use of boundary element methods for calculating distributions of elastic stress and displacement around mining excavations is illustrated for the cases of tabular orebody extraction and a tunnel intersection problem. For other clas- ses of problem, limiting equilibrium methods of analysis may be required. The ap- plication of limiting equilibrium analysis in the study of hangingwall caving and rooffalls is outlined.

      本文概述了倫敦帝國學院巖石力學小組,將巖石力學原理應用于采礦坑道設計方面的最近工作。文中討論了巖體中坑道穩定性的幾種類型,給出了表示設計步驟的流程圖。討論了節理性巖石的一種新的經驗強度準則,并以深部金礦中方形平巷周圍的巖石破壞為例,說明了該準則的應用。以極狀礦體開采和坑道交叉問題為例,說明了邊界單元法計算采礦坑道周圍彈性應力和位移的應用。對其他類型的問題,需要用極限平衡分析法。文中概述了極限平衡分析法在上盤崩落與頂板冒落研究中的應用。

      Some suggestions for establishment of a new cource entitled as “The Technological Categories of ores”are first summarized.It consists of systematic classification of impor- tant industrial ores according to their technological behavior.The main function of such course operate at the preliminary evaluation of the ore,the selection of the processing method,the assertion of treating flowsheet,and the prediction of the feasibility and probable metallurgical results. Criteria of classification including:beneficiation...

      Some suggestions for establishment of a new cource entitled as “The Technological Categories of ores”are first summarized.It consists of systematic classification of impor- tant industrial ores according to their technological behavior.The main function of such course operate at the preliminary evaluation of the ore,the selection of the processing method,the assertion of treating flowsheet,and the prediction of the feasibility and probable metallurgical results. Criteria of classification including:beneficiation characteristics,size of liberation, selective leaching and smelting properties,the composition of valuable minerals and gangues,the intergrowth and combination of metallic elements,the ore texture and structure,and other special technological processing factors,Although the classification might be very comprehensive,but a systematized knowledge of mineral processing and extractive metallurgy should be used to arrange the technological categories into rather brief and obvious form. For example,the categories of placer gold ore,uranium ore,ferrous ore,tin containing polymetallic ore are classified as illustration.

      本文提出關于建立“礦石工藝類型”一門新學科的一些建議。此學科系根據礦石的工藝特性,對主要的工業礦石進行系統分類。其主要內容涉及礦石初步評價、選礦方法的選擇、工藝過程流程的評定、可行性的預測以及可能獲得的工藝指標。分類的判據包括:可選性、粒度組成、浸出和熔煉的性質、有用礦物和脈石的組成、金屬元素的共生組合、礦石的結構和構造以及其它特殊的工藝因素。分類盡管極為復雜,但是可以應用選礦和提取冶金學的系統知識,編出簡明的工藝類型。本文例舉了砂金礦、鈾礦、鐵礦,含錫多金屬礦的類型。

       
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