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单词
sprocket hole
释义
sprocket hole
sprocket hole
[
′spräk·ət ‚hōl
]
(engineering)
One of a series of perforations at the edge of a motion picture film, paper tape, or roll of continuous stationery, which are engaged by the teeth of a sprocket wheel to drive the material through some device.
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更新时间:2025/3/3 5:33:15