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单词
clack valve
释义
WordReference Random House Unabridged Dictionary of American English © 2024
clack
′
valve′,
Mechanical Engineering
a valve having a hinged flap permitting flow only in the direction in which the flap opens. Also called
flap valve.
1855–60
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sizarship
size
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sizeably
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更新时间:2025/11/9 22:36:51