| 单词 | quasi-stable elementary particle |
| 释义 | quasi-stable elementary particle [¦kwä·zē `stā·bǝl `el·ǝ´men·trē `pärd·ǝ·kǝl] PARTICLE PHYSICS A term formerly (before the discovery of charmed particles) used for elementary particles that cannot decay into other particles through strong interactions and that have lifetimes longer than 10-20 second. Also known as semistable elementary particle. |
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