单词 | eta-c particle |
释义 | eta-c particle e.ta-c particle AHD: [³“t…-s¶“, ¶“t…-] D.J. [6e!t*6si8, 6i8t*-]K.K. [6et*6si, 6it*-]n.(名词)An electrically neutral meson having a mass 5,832 times that of the electron and a mean lifetime of approximately 3.1 × 10&9{-22} seconds. eta-c粒子:一种质量为电子的5,832倍带电的中性介子,其平均寿命约为3.1 × 10&9{-22}秒钟 |
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