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单词
guard pin
释义
WordReference Random House Unabridged Dictionary of American English © 2024
guard
′
pin′,
[
Horol.
]
Time
(in a lever escapement) a pin on the lever, meeting the safety roller in such a way as to prevent the lever from overbanking. See diag. under
lever escapement.
1875–80
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r&b
rb
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r.b.i.
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rc
rca
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r.c.ch.
rcd.
rcd
rcm
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rcmp
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rcn
r-color
r-colored
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rcp
rcpt.
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r.c.s.
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更新时间:2025/7/23 15:26:25