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单词
butterfly valve
释义
WordReference Random House Unabridged Dictionary of American English © 2024
but
′
terfly valve′,
Mechanical Engineering
a clack valve having two flaps with a common hinge.
Mechanical Engineering
a valve, as the throttle valve in a carburetor, that swings about a central axis across its face.
1860–65
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更新时间:2025/7/23 19:43:49