Firstly, some new conceptions such as component function matrix and generalized quadratic form function are presented.
提出了分量函数矩阵和广义二次型函数等新的概念,讨论了广义二次型函数定号性的判定方法。
Three new conceptions of blade channel contraction factor, whistling generation function and surging generation function are proposed.
提出了叶道收缩系数、哨声发生函数和喘振发生函数三个新概念。
History of modern societal culture has been becoming a significant growing point of new conceptions and new means of historical research.
近代社会文化史正在成为史学新观念和新方法的一个重要生长点。
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