helium method 中文意思是什麼

helium method 解釋
氦測法
  • helium : n. 【化學】氦。 helium-4 氦4〈氦的最常見同位素〉。
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. 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
  2. Vacuum leaks detection method by helium mass spectrometer

    氦質譜真空檢漏方法
  3. Test method for density of solid pitch helium pycnometer method

    固體瀝青密度測定方法
  4. Standard test method for density of solid pitch helium pycnometer method

    固體硬瀝青密度的標準試驗方法
  5. Test method for real density of calcined petroleum coke by helium pycnometer

    氦比重瓶測定煅燒石油焦真密度的方法
  6. Standard test method for real density of calcined petroleum coke by helium pycnometer

    氦比重瓶測定煅燒石油焦真密度的標準試驗方法
  7. In this thesis, based on racah method of two - electron atom and non - relativistic energy structure for helium - like atoms, the relativistic corrections and the fine structure of helium - like atoms, including the relativistic mass correction, the darwin correction terms, the electron - electron contact terms, the orbit - orbit interaction, the spin - orbit interaction, the spin - other - orbit interaction and the spin - spin interaction, are studied systemically using irreducible tensor. concretely, the main works of this thesis are as follows

    本文以雙電子原子結構的拉卡理論和類氦離子的非相對論原子結構的計算結果為基礎，利用不可約張量理論，較為系統地研究了類氦離子的相對論效應和精細結構，包括相對論質量修正、達爾文修正、電子與電子之間接觸相互作用、軌道-軌道相互作用、自旋-自旋相互作用、自旋-其它軌道相互作用以及自旋-軌道相互作用。
  8. The method is concretely applied to calculate the concerned energy states of helium - like atoms, and the calculation precision can be up to 99 %

    並將這些方法具體用於計算類氦離子的有關能態，計算精度可以達到99 % 。
  9. Standard test method for percent volume nonvolatile matter in clear or pigmented coatings using a helium gas pycnometer

    使用氦氣測比重術對顏料塗覆或非揮發性清除物體積百分比的標準試驗方法
  10. Standard test method for measuring package and seal integrity using helium as the tracer gas

    使用氦作為示蹤氣體測量包裝和密封完整性的標準試驗方法
  11. It has an inflate method filling it with helium, a deflate method expelling its contents, and a rise method letting go of it

    它具有充氣方法（在其中充滿氦氣） 、放氣方法（放出其中的氣體）和上升方法（釋放氣球） 。
  12. Standard test method for calibration of helium leak detectors by use of secondary standards

    使用副標準件校準氦檢漏儀的試驗方法
  13. 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
  14. 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
  15. Standard test method for metal powder skeletal density by helium or nitrogen pycnometry

    用氦或氮比重瓶測定法測量金屬粉末輪廓密度的標準試驗方法
  16. In the theoretical simulation on the behavior of single helium atom in aluminum, the varieties of energy data including the formation, migration, binding, and dissociation energies for single helium atom at the interstitial, vacancy, grain boundary, and dislocation sites in aluminum lattice were calculated, based on the density functional theories, general gradient approximation and pseudopotential plane wave method. results showed that the most fittable sites for containing helium atoms inside the cell are vacancies. but in the view of the whole lattice, grain boundaries are the best

    計算結果表明，晶內he原子擇優佔位區是空位，而在整個晶體范圍，最有利於容納he原子的區域是晶界，位錯容納he原子的能力次於晶界和空位；在fcc -鋁的間隙位中， he原子優先充填四面體間隙位；晶內間隙he原子是可動的，通過間隙he原子的運動，可在晶內聚集，或被空位、晶界、位錯等缺陷束縛。
  17. The sense of this work is to gain a further understanding of helium in the two metals. on the diffusion of helium - 3 in two spherical shell samples made of 21 - 6 - 9 type of stainless steel, during the storage of tritium at the pressure of 6. 13mpa for about 4 and 6 years at room temperature and later exposed to air for another 3 and 1 year. first, a calculation based on the analytical and numerical method to the diffusion and decay theories was developed to evaluate the concentration distribution of helium - 3 by tritium diffusion and decay in the samples

    在不銹鋼氚衰變~ 3he的擴散行為研究中，建立了氚和~ 3he濃度分佈的解析解和數值計算方法，以評估充氚不銹鋼球形容器壁中氚衰變~ 3he的宏觀濃度分佈，同時還用數值計算方法以求解氚和~ 3he的多步擴散行為；對樣品表面逐層蝕刻、同時收集釋放的~ 3he進行分析，分別實測了經室溫條件下在6 . 13mpa高壓氚中貯存4年和6年、空氣中存放3年和1年的兩種21 - 6 - 9不銹鋼球殼樣品內壁中~ 3he濃度分佈；結果表明：由於he在金屬中的不可容性， he原子偏聚于不銹鋼表面以及內部的局部區域，在整體趨勢上， ~ 3he分佈與計算結果相一致，根據理論計算，兩種21 - 6 - 9不銹鋼球殼樣品內壁中~ 3he到達的深度分別為350 m及500 m 。
  18. Secondly, the cfd method is used to study the flowfields in the laser chamber and the loss of the total pressure in several types of nozzles. the answer shows that reducing the length of the nozzles and the high of the throats in the nozzles can reducing the loss of the total pressure. and the answer also shows that the small nozzles with helium injected in the base region are good for laser chamber pressure recovery

    其次，本文利用cfd技術模擬了光腔流場，研究了幾種噴管的總壓損失特性。研究結果表明，對于平面對稱噴管，減小噴管長度，增加喉道高度有利於減少總壓的損失。用cfd技術對光腔段的模擬表明，採用小尺寸噴管，並且在基區大量注入氦氣有利於激光器壓力恢復。
  19. Test method for tension testing of structural alloys in liquid helium

    液態氦中結構合金的抗拉強度測試方法
  20. Many gettering techniques have been widely studied to overcome this problem by removing metal impurities from active regions of device. one new gettering method that has recently received growing interest is the use of nanocavities resulting from helium or hydrogen implantation

    所以需要減小有源區中金屬雜質的濃度，通常採用吸除的方法把金屬雜質從器件有源區吸收到有源區之外預先形成的sink （陷阱）中。
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