釷石 的英文怎麼說

中文拼音 [tǔdàn]
釷石 英文
[礦物學] thorite
  • 釷 : 名詞[化學] （放射性金屬元素） thorium （th）
  • 石 : 石量詞（容量單位, 十斗為一石） dan, a unit of dry measure for grain （= l00 sheng）
  1. It is important that study gamma - ray spectrometry of field rock and soil in the earth ' s crust. its energies range between 30kev and 3000kev, where there is much information of natural radioactive nuclides, such as uranium, thorium, potassium, and information of artificial radioactive nuclides, such as cesium, americium, cobalt, and information of the results in interaction between gamma - ray and earth ' s crust

    研究表明：野外地面射線能譜測量主要研究地殼巖石土壤中產生的能量約為30kev 3000kev的射線，這裡面包含著鈾、釷、鉀等天然放射性核素信息，核工程活動產生的大量人工放射性核素信息以及射線與地殼相互作用產生的相關信息。
  2. Catalytic decoloring spectrophotometry for determination of trace thorium in coal gangue

    催化褪色光度法測定煤矸石中痕量釷
  3. Methods for chemical analysis of monazite concentrates - determination of thorium oxide content

    獨居石精礦化學分析方法氧化釷量的測定
  4. Determination of thorium in uranium ore concentrate by thorin photometric method

    鈾礦石濃縮物中釷的測定釷試劑光度法
  5. Determination of thorium in thorium ores n263 separation edta titration method

    釷礦石中釷的測定n263分離edta滴定法
  6. Methods for chemical analysis of iron ores - the thorium nitrate volumetric method for the determination of fluorine content

    鐵礦石化學分析方法硝酸釷容量法測定氟量
  7. Even without these man made sources of radiation, exposed to natural background radiation. the rocks and soil of the earth s crust contain variable amounts of natural radioactive elements such as uranium and thorium. this varies with geography - for example the hottest places in britain are cornwall and around aberdeen

    就算排除人為輻射，人類會在天然環境中接觸到本底輻射，如地球外殼的巖石和泥土含有份量不同的輻射元素如鈾和釷，而份量視乎地理位置，如英國的康瓦爾和阿伯丁郡最為熱點。
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