“technetium”的概念、定义、翻译、参考文献-科学参考

单词	technetium
释义	technetium [tek`nē·shē·ǝm] ^CHEMISTRY A transition element, symbol Tc, atomic number 43; derived from uranium and plutonium fission products; chemically similar to rhenium and manganese; isotope ⁹⁹Tc has a half-life of 200,000 years; used to absorb slow neutrons in reactor technology. ^METALLURGY Silver-gray metal with a high melting point, slightly magnetic.
随便看	2,4-dimethylsulfolane 2,4-dinitroaniline 2,4-dinitrobenzaldehyde 2,4-dinitrobenzenesulfenyl chloride 2,4-dinitrophenylhydrazine 2,4-DP 2,5-furandione 2,5-naphthylamine sulfonic acid 2,6-dibromoquinone-4-chlorimide 2,6-dichloro-4-nitroaniline 2,6-di-tert-butyl-para-tolylmethylcarbamate 2,7-diaminofluorene 2-\\(4-thiazolyl\\)benzimidazole 2-\\(hydroxydiphenyl\\)methane 2-\\(α-naphthoxy\\)-N,N-diethylpropionamide 2-amino-1-butanol 2-amino-2-methyl-1,3-propanediol 2-amino-5-naphthol- 7-sulfonic acid 2-amino-5-nitrothiazole 2-aminoethanethiol 2-aminopropane 2-aminothiazole 2-azetidinecarboxylic acid 2-butoxyethanol 2-cyanoethanol

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