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单词
antimatter
释义
an·ti·mat·ter
\ˈ ̷ ̷(ˌ) ̷ ̷
at
anti- I +ˌ ̷ ̷ ̷ ̷\
noun
(
-s
)
Etymology:
anti-
(I)
+ matter
:
matter composed of the counterparts of ordinary matter, antiprotons instead of protons, positrons instead of electrons, and antineutrons instead of neutrons
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更新时间:2025/7/29 10:40:12