单词 | atomic number 32 |
释义 | atomic number 32 (extremely rare) n WORD FAMILY atomic number 32 n a brittle grey crystalline element that is a semiconducting metalloid (resembling silicon) used in transistors; occurs in germanite and argyrodite Syn|Hyper Ge, germanium chemical element, element any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter semiconducting material, semiconductora substance as germanium or silicon whose electrical conductivity is intermediate between that of a metal and an insulator; its conductivity increases with temperature and in the presence of impurities |
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