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单词
ammonium persulfate
释义
ammonium persulfate
noun
:
a colorless crystalline salt (NH
4
)
2
S
2
O
8
used as an oxidizing agent and for improving dense photographic negatives
Word History
First Known Use
1891, in the meaning defined above
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sists
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sisymbrium
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sisyphian
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sisyphuses
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sit
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sit bolt upright
sit by
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sit in
sit in judgment
sit in on
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更新时间:2025/3/15 13:24:04