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例句
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简体中文
speed of grinding wheel spindle
speed of instrument
speed of lens
speed of light
speed of light circle
speed of loading
speed of main shaft
speed of main spindle
speed of mainshaft
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speed of light circle
➞
speed of light circle
Definitions
[1] 光速圈
哈罗摩托-百万摩友的摩托车之家！
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简体中文
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speed of light circle