deadman
n. 木桩或水泥桩, 临时支撑物
词形变化
deadmen
复数
deadmen
别名
dead man
释义与例句
n.
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1.
A long object, often a timber or log, buried to serve as an anchor for a wall or for stays.
商务 建筑 工程The building code requires deadmen for retaining walls.
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2.
A cutout device that operates in the event that an operator releases the control handles, leaves the operator's seat, or otherwise seems to be no longer present and alert.
植物学 商务 工程 交通a deadman device
词源
From dead + man. In the sense referring to a safety switch, the notion of an operator who is dead is the figurative archetype representing any incapacitation, absence, or inattention. See also Dead Hand in that regard.
来源:wiktionary