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单词
walking beam
释义
WordReference Random House Unabridged Dictionary of American English © 2024
walk
′
ing beam′,
[
Mach.
]
Mechanical Engineering
an overhead oscillating lever, pivoted at the middle, for transmitting force from a vertical connecting rod below one end to a vertical connecting rod, pump rod, etc., below the other end.
1835–45,
American.
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更新时间:2025/11/16 18:45:48