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单词
thermion
释义
therm·i·on
(thûr
m
ī
′
ə
n)
n.
An electrically charged particle, especially an electron, emitted by a conducting material at high temperatures.
therm
′
i·on
ic
(-m
ī
-
ŏ
n
ĭ
k)
adj.
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abuse
abuse oneself
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pollen sac
pollen tube
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pollex
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更新时间:2025/5/31 7:21:47