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down quark
释义
WordReference Random House Unabridged Dictionary of American English © 2024
down
′
quark′,
[
Physics.
]
Physics
the quark having electric charge -
1
⁄
3
times the elementary charge, with strangeness, charm, and other quark quantum numbers equal to 0. Also called
d quark.
1975–80
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更新时间:2026/9/9 5:04:28