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词汇
pi-meson
释义
pi-meson
n.
(名词
noun
)
【理】
π介字
(= pion)
(具有静止质量的介子,其质量约为电子质量的273倍[π〔↑+〕, π〔↑-〕]或264倍[π〔↑0〕])
同义:
pion
π介字
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switch
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switchblade
switchboard
switch box
switch cane
switched-on
switch engine
switcher
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switchgear
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switch-hitting
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更新时间:2026/6/15 19:23:24