| 单词 | 人工产生 |
| 释义 | 〔factitious〕Produced artificially rather than by a natural process.人工的，人为的：人工产生的而不是自然过程产生的〔fermium〕A synthetic transuranic metallic element (atomic number 100) having 10 isotopes with mass numbers ranging from 248 to 257 and corresponding half-lives ranging from 0.6 minute to approximately 100 days. See table at element 镄：一种人工产生的放射性金属元素（原子序数为100），拥有10个在元素周期表中从248到257的同位素，半衰期从0.6分钟到约100天 参见 element〔bohrium〕An artificially produced radioactive element with atomic number 107 whose most long-lived isotopes have mass numbers of 261, 262, and 264 with half-lives of 11.8 milliseconds, 0.1 seconds, and 0.44 seconds, respectively. Also called unnilseptium ：人工产生的放射性元素，原子序数号为107，生命期最长同位素的质量为261、262和264，半衰期分别为11.8毫秒、0.1秒和0.44秒 也作 unnilseptium〔seaborgium〕An artificially produced radioactive element with atomic number 106 whose most long-lived isotopes have mass numbers 259, 261, 263, 265, and 266 with half-lives of 0.9, 0.23, 0.8, 16, and 20 seconds, respectively. Also called unnilhexium ：人工产生的放射性元素，原子序数号为106，生命期最长同位素的质量为259、261、263、265和266，半衰期分别为0.9秒、0.23秒、0.8秒、16秒和20秒 也作 unnilhexium〔meitnerium〕An artificially produced radioactive element with atomic number 109 whose most long-lived isotopes have mass numbers of 266 and 268 with half-lives of 3.4 milliseconds and 70 milliseconds, respectively. Also called unnilennium ：人工产生的放射性元素，原子序数号为109，生命期最长同位素的质量为266和268，半衰期分别为3.4毫秒和70毫秒 也作 unnilennium |
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