isotopic peak 中文意思是什麼

isotopic peak 解釋
同位素峰
  • isotopic : adj. 同位素的。 isotopic abundance ratio 同位素豐度比。 isotopic spin 同位旋。adv. -ally
  • peak : vi 1 瘦弱；消瘦，憔悴。2 減少，縮小 （out）。n 1 山峰，山頂；孤山。2 （胡須等的）尖兒；尖端。3 最...
  1. It ' s a more accurate method in determining the isotopic abundance of uranium. the paper describes the measurement principles that allow accurate measurements to be taken on samples of arbitrary size, shape, and measurement geometry - and of arbitrary physical and chemical composition - through the use of know nuclear decay data ( half - lives and branching intensities ). this method relies on internal gamma - ray peaks from the spectrum under analysis to self - calibrate the unknown spectrum for energy and peak shape

    本工作首次分析了pc fram軟體的演算法並使用高純鍺探測器探測歐共體低濃鈾標準樣品，使用pc fram軟體的預設參數並不能得到準確的富集度值，通過大量的實驗，本工作對鈾富集度測量中的關鍵問題進行了初步的研究並給出了本實驗室條件下準確分析鈾富集度的修正參數和條件。
  2. By statistically analyzing of isotopic ages for granitoids and commenting on previous studies, the authors preliminarily determine that a large volume of granitoids developed during 200100ma, predominately formed in the period of 150100ma, with the peak age at about 130ma. the inferred lithosphere delamination from the development of granitoids occurred slightly later than that deduced from researches on metamorphic rocks

    通過對花崗巖類同位素年統計和前人研究成果的評述，初步確定在200100ma之間發育大量花崗巖類，並集中在150100ma為主即侏羅紀白堊紀之交，高峰時間為130ma左右花崗巖類大量發育指示了巖石圈拆沉的存在，且滯後於根據變質巖研究所揭示的拆沉時間。
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