英语词汇“neptunium series”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	neptunium series
释义	neptunium series neptunium series n (General Physics) a radioactive series that starts with plutonium-241 and ends with bismuth-209. Neptunium-237 is the longest-lived member of the series. The series does not occur in nature
随便看	tread the boards tread the path tread/walk a fine/thin line tread/walk a tightrope tread warily tread water tread wear indicator treadwell, frederick pearson tread-wheel treadwheel treadwheels tread width treague treanda tre ankare treanorite trearap tre arrow legal defense fund treas treas. treas dept treason treasonable treasonablely treasonableness

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