英语词汇“upsilon particle”是什么意思，“upsilon particle”的读音、用法及例句翻译-乐坝网

词汇	upsilon particle
释义	upsilon particlen.（名词） An electrically neutral meson having a mass 18,513 times that of the electron and a mean lifetime of approximately 8.0 × 10^-20 seconds. γ微粒：为电中性的介子，其质量是电子的18,513倍，平均寿命约为8.0 * 10-²⁰ 秒
随便看	firestone Firestone firestorm firestorms fire thorn fire tower firetrap fire truck firewall firewater fireweed firewood firework firework fireworks fire–eater firing firing firing line firing party firing pin firings firing squad firkin firkins

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