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单词
sight aperture
释义
sight aperture
sight aperture
[
′sīt ‚ap·ə·chər
]
(ordnance)
An irregularly shaped, adjustable, mechanical item usually integral to a rear sight; it functions as a peephole through which the sight at the opposite end of a gun is brought into view in aiming at a target or object.
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更新时间:2025/6/24 5:21:44