英语词汇“disc micrometer”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

　

单词	disc micrometer
释义	Definition of disc micrometer in English: disc micrometer (US disk micrometer) noun 1Astronomy a micrometer in which the image in a telescope or microscope is made to fall on a circular disc, placed at such a position as to match the image in diameter, the position and diameter of the disc then allowing the angular size of the image to be calculated; now rare and historical. 2Engineering a micrometer in which the two jaws end in a circular disc to provide a larger grasping area. Origin Late 19th century; earliest use found in American Journal of Science. Definition of disc micrometer in US English: disc micrometer (US disk micrometer) noun 1Astronomy a micrometer in which the image in a telescope or microscope is made to fall on a circular disc, placed at such a position as to match the image in diameter, the position and diameter of the disc then allowing the angular size of the image to be calculated; now rare and historical. 2Engineering a micrometer in which the two jaws end in a circular disc to provide a larger grasping area. Origin Late 19th century; earliest use found in American Journal of Science.
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更新时间：2025/1/11 13:36:58