“protactinium”的概念、定义、翻译、参考文献-科学参考

单词	protactinium
释义	protactinium Encyclopedia 理学放射性元素释 protactinium镤天然放射性元素，元素符号Pa，原子序数91，原子量为231.03588，属周期系ⅢB族，锕系元素。 Physics protactinium=protoactinium镤91Pa｛化｝ Astronomy protactinium缩写：Pa。镤 Chemistry ＞放射化学与辐射化学＞放射性元素化学＞释义 protactinium镤
随便看	two-dimensional synthesis two-dimensional system two dimensional system conrolability two dimensional system observability two-dimensional systems two-dimensional theory two dimensional topological insulator two-dimensional tracking two-dimensional tracking, 2D tracking two-dimensional transformation two dimensional turbulence two dimensional ultrafast spectroscopy two-dimensional ultrafast spectroscopy two-dimensional vector space two-dimensional vorticies two dimensional waveguide two-dimension design of concentrators two-dimension photometry two dimension semiconductor two-dimension semiconductor two-dimentional electron gas two-disk phosphoroscope two-D NMR logging Two Dramatic Works of Li Ciming two-drift hypothesis

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