“thorium”的概念、定义、翻译、参考文献-科学参考

单词	thorium
释义	thorium Encyclopedia 工学核燃料释 thorium钍天然放射性元素。元素符号Th，原子序数90，原子量232.0381，锕系放射性元素。理学放射性元素释 thorium钍天然放射性元素，元素符号Th，原子序数90，原子量232.0377。属周期系ⅢB族，锕系元素。以北欧神话中的雷神托尔（Thor）命名。 Physics thorium钍₉₀Th｛化｝ Astronomy thorium缩写：Th。钍 Chemistry ＞放射化学与辐射化学＞放射性元素化学＞释义 thorium钍
随便看	principal coincidence curve principal component principal component analysis principal component analysis and singular value decomposition principal component analysis (PCA) principal component analysis, PCA principal component analysis,PCA principal component clustering principal component discrimination principal component estimate principal component estimate of the coefficients in linear regression model principal component estimation principal component of order p principal component regression principal component regression method principal component regression method (PCR) principal component regression spectrophotometry principal components principal components analysis principal component transformation principal computable enumeration principal congruence principal congruence relation principal congruence subgroup principal conjecture

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