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单词
patent log
释义
WordReference Random House Unabridged Dictionary of American English © 2024
pat
′
ent log
′
,
[
Naut.
]
Nautical, Naval Terms
any of various devices for determining the speed of a ship by means of a vaned rotor streamed at the end of a log line upon which it exerts a torsion transmitted to a registering device on board. Also called
screw log.
1875–80
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更新时间:2025/7/23 10:01:43