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单词
back check
释义
back check
back check
[
′bak ‚chek
]
(design engineering)
In a hydraulic door closer, a mechanism that slows the speed with which a door may be opened.
back check
In a hydraulic door closer, 1 a mechanism which slows the speed with which a door may be opened.
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更新时间:2025/12/22 22:48:16