液氦 的英文怎麼說

中文拼音 [yèhài]
液氦 英文
liquid helium four
  • 液 : 名詞（液體） liquid; fluid; juice
  • 氦 : 名 [化學] helium （2號元素, 符號 he）
  1. To research in the area of liquid helium cryopump used in nbi system is meaningful for obtaining better beam transportation efficiency. physical parameters and experience are obtained that are very useful in developing cryopumps

    開展中性束注入系統液氦低溫冷凝泵的研究，對獲得優良的束傳輸效率，具有非常重大的意義；並為以後相關應用領域中低溫冷凝泵的設計提供了性能參數和工程經驗。
  2. To research in the area of liquid helium cryopump used in nbi system is meaningful for obtaining better beam transportation efficiency. physical parameters and experience were obtained which is very useful in developing even larger cryopump

    開展中性束注入系統液氦低溫冷凝泵的相關研究，對獲得優良的束傳輸效率，具有積極的意義；並為以後開發更大抽速的低溫泵及相關應用積累了豐富的物理參數和經驗。
  3. Method of elastic - plastic fracture toughness jic testing for metallic materials in liquid helium

    液氦中金屬材料的彈塑性斷裂韌度的jic測試方法
  4. Comparison of calculation methods of limit of superheat temperature of liquid helium

    液氦極限過熱度計算方法比較
  5. Collective excitation of quasi - one dimensional electron systems on liquid helium surface at a magnetic field

    磁場作用下液氦表面準一維電子氣體的激發
  6. The working principle of liquid helium cryocondensation pump is strong absorptive force between 4. 2k cryogenic surface and gas molecules. the pump has great advantage in large instant pumping speed under high gas load, large working pressure range, high & neat ultimate vacuum

    利用4 . 2k低溫面對氣體的物理吸附機制實現高氣載下瞬時大抽速的液氦低溫冷凝泵，具有工作壓強范圍寬、能獲得清潔真空環境的特點。
  7. Liquid helium cryocondensation pump has great advantages in large pumping speed, working pressure range and high ultimate pressure, etc. it ' s more excellent than any other vacuum pump. it can meet the vacuum requirement of nbi and can improve the transportation efficiency. the development of neutral beam injection ( nbi ) system in the world, the structure of nbi system used on the ht - 7 device of asipp was introduced in the thesis

    液氦低溫冷凝泵是利用低溫面對氣體有強吸附能力的原理，實現抽氣的真空獲得設備，它具有抽速大、工作壓強范圍寬、極限真空度高等一系列優點，是普通真空設備無法比擬的，作為中性束注入系統的主抽泵，它能滿足中性束注入系統對大抽速的要求，提高中性束的傳輸效率。
  8. Containers are designed and manufactured according to applicable codes and specifications for the pressures and temperatures encountered with liquid helium

    容器的設計和製造是根據液氦遇到的壓力和溫度所適用的法規和規范。
  9. Further experiments of a 4k two - stage pulse tube cooler for operation of a josephson voltage standard

    液氦溫區脈管製冷機的優化實驗
  10. Real ingenuity is required to take the third step to attain liquid helium temperatures of 4°k.

    要走第三步，達到液氦的溫度4K需要十分精湛的技術。
  11. The ultra helium dewars controls are conveniently located on the top, with nesting fill couplings to accept various standard transfer line sizes

    超級深冷液氦杜瓦罐的控制閥組及接頭安裝在頂部，非常便於操作，並可連接各種標準尺寸的軟管。
  12. Method of low cycle fatigue testing for metallic materials in liquid helium

    液氦中金屬材料的低周期疲勞試驗方法
  13. Standard test method for tension testing of structural alloys in liquid helium

    液氦中結構合金抗拉試驗的標準試驗方法
  14. " for his pioneering theories for condensed matter, especially liquid helium

    關于凝聚態物質，特別是液氦的開創性理論
  15. Liquid helium is most frequently provided to customers in a liquid container

    液氦主要是存儲在液體容器中提供給用戶。
  16. Effect on pressure in the vessels of east cryogenic system due to fluctuation of heat loads

    超導托卡馬克熱負荷波動對低溫系統液氦槽的影響
  17. The ultra helium dewars are designed and built for reliable transport. they are light, maneuverable and durable, while providing superior thermal performance

    專為液氦的可靠運輸設計和製作，具有自重輕易操作高可靠性及超級絕熱性能等特點。
  18. Studies on the determining of the performance of 4. 0 l05l / s ( for h2 ) liquid helium cryocondensation pump are developed in detail. the principle of physical absorption is analyzed. the design of liquid helium cryocondensation pump, heat and mass transfer, performance testing are also researched

    針對嵌入式布置於中性束注入系統的4 . 0 10 ~ 5l s液氦低溫冷凝泵展開了詳細研究，分析了液氦低溫冷凝泵的物理吸附機理，並進行了lhe低溫冷凝泵的設計、傳熱傳質分析和性能測試。
  19. The large - scale superconducting magnets are presently widely used in modern high - energy particle accelerators and nuclear fusion experimental device, which generally operate at liquid helium temperature region. cryogenic technology is developing with the requirement of operation for superconducting magnets

    而超導磁體大都運行在約4 . 5k （ - 269 ）的液氦溫區，這又促進了低溫技術的發展。
  20. Especially, in the filed of high tc superconductor, the technology that the cryocooler directly cool the superconducting system has changed the traditional cooling manner, which adopts the method of low tc fluid helium ' s convection and boiling to exchange the heat. it mainly depends on the cooling manner of conducting heat through the interfacial layer between the material of superconductor and non - superconductor ( such as cu, isolator, etc )

    特別是在高溫超導領域中，由於製冷機直接冷卻技術改變了傳統的靠低溫液氦對流、沸騰換熱的冷卻方式，主要依靠超導材料與非超導材料（如銅、電絕緣材料等）固體間的接觸導熱冷卻方式，固體間界面熱阻成為影響導熱性能的關鍵因素之一。
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