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单词
acetic anhydride
释义
acetic anhydride
noun
:
a colorless mobile liquid (CH
3
CO)
2
O with a pungent odor and lacrimatory and vesicant action used in organic synthesis, especially in making acetyl derivatives (as cellulose acetate and aspirin) and in condensations
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knock dead
knockdown
knock down
knock-down-and-drag-out
knock-down, drag-out
knocked
knocked
knocked-down
knocker
knocker
knocker-off
knock for a goal
knock for a loop
knocking
knocking
knocking over
knocking shop
knock in the head
knock into a cocked hat
knock-knee
knock-kneed
knock-knees
knockless
knock-me-down
knockmeter
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更新时间:2025/11/19 0:34:34