单词 | eta-c particle |
释义 | eta-c particle音节分段:e.ta-c particle; AHD音标:3“t…-s?“, ?“t…-; 国际音标:6e!t*6si8, 6i8t*-; 美国音标:6et*6si, 6it*-; An electrically neutral meson having a mass 5,832 times that of the electron and a mean lifetime of approximately 3.1 × 10-22 seconds. |
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