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单词
dithionic acid
释义
di·thionic acid
\|dī+...-\
noun
Etymology:
International Scientific Vocabulary
di- + thionic
:
a strong dibasic acid H
2
S
2
O
6
made by oxidizing sulfurous acid but known only in solution and in the form of salts
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upon one's mettle
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upon the spot
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upped
upper
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upper angle
upper austral
upper bench
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uppercase
upper case
upper chamber
upper chinook
upper-class
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upper crust
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更新时间:2025/6/17 19:56:27