The core of the new manufacturing process for the high quality upgraded Manganese steel is fractionation modification, composite inoculation and microalloying technique, which are affected each other.

优质改性高锰钢生产新工艺的核心是将分级变质处理、复合孕育处理和微合金化技术三位一体，互为作用。

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Oxygen isotope fractionation in amphiboles was determined by theoretical calculation using the increment method and by experimental measurement using isotope exchange technique.

利用增量方法和同位素交换技术，对角闪石族矿物的氧同位素分馏进行了理论计算和实验测定。

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The classical subcellular fractionation methods coupled with mass spectrometry identification technique have created opportunities for the study of subcellular fractions.

传统的亚细胞分离技术结合质谱鉴定技术为亚细胞蛋白质组学的研究提供了技术平台。

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