| 释义 |
> as lemmasuranium-235 uranium-235 n. an isotope of uranium, mass number 235, which is able to sustain a nuclear chain reaction, making it suitable for use in nuclear power and nuclear weapons.Natural uranium contains only about 0.72% uranium-235, and must be enriched before it can be used as a nuclear fuel or explosive; cf. uranium enrichment n. at Compounds 2.< |