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单词 pion
释义
N35689124pionSpoken.2Fiction.21Magazine.25Newspaper.15Academic.61

pion

/ˈpaɪɒn/
noun
Physics a meson having a mass approximately 270 times that of an electron
【物理】π介子。亦作PI-MESON.
派生词

pionic

adjective
词源
1950s: from PI1(the letter used as a symbol for the particle) + -ON.
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更新时间:2025/3/14 1:14:59