主元素

principal element的用法和样例:

例句

  1. In the elimination method of solving linear equations,pivot in an elimination step is a element with maximum-mod.在解线性方程组的消元法中,主元素指在某步消元时模最大的那个元素。
  2. Major and trace element geochemical data show that this deposit was formed in a restricted aulacogen against the setting of an active continental margin.沉积岩的主元素和特征微量元素地球化学研究表明,该矿床形成于活动大陆边缘的局限裂陷海盆环境。

Today that sounds ridiculous. 今日这种说法听来荒唐 But two hundred years ago it didn't seem so unlikely. 但是两百年前还颇言之成理 It was widely believed that 当时一般人认为 the Earth was only a few thousand years old. 地球

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学英语单词
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Lodosa
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Mayari
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Uroporphyrinogendecarboxylase
vector loop method
Yankul'
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