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单词 rectangulometer
释义 rectanguˈlometer
[f. as rectangul-ar + -ometer.]
An instrument for testing right angles.
1843Holtzapffel Turning II. 880 When the work and trial bar, (or rectangulometer), are both laid down, the one side of the bar presents a truly perpendicular face.
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更新时间:2024/12/22 18:04:42