“hafnium”的概念、定义、翻译、参考文献-科学参考

单词	hafnium
释义	hafnium Encyclopedia 工学控制材料释 hafnium铪化学元素。元素符号Hf，原子序数72，原子量178.49。属周期系ⅣB族。工学难熔金属释 hafnium铪金属元素，化学符号Hf，原子序数72，原子量178.49，位于元素周期表中IVB族。理学铪释 hafnium铪化学元素，元素符号Hf，原子序数72，原子量178.49(2)。属周期系ⅣB族。 Physics hafnium铪72Hf｛化｝ Astronomy hafnium缩写：Hf。铪 Chemistry ＞无机化学＞无机化学基本概念与无机化合物＞释义 hafnium铪
随便看	e-government evaluation criteria E-government extranet E-government in Australia E-government information classification e-government information security system E-government information system audit management E-government in Korea E-Government in Singapore E-government intranet E-government laws and regulations E-government management standard E-government network technology e-government organization of China e-government performance evaluation E-Government Policy Framework for Electronic Records Management E-government private network E-government Process Change E-government project implementation E-government project management E-government project operation and maintenance e-government project supervision E-government safety demonstration e-government services e-government system planning EGP

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