英
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美
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new
actinoid的英文翻譯是什么意思,詞典釋義與在線翻譯:
英英釋義
Noun:
-
any of a series of radioactive elements with atomic numbers 89 through 103
Adjective:
-
having a radial form;
"starfish are actinoid--that is, they are radially symmetrical"
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