英语词汇“datum line”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	datum line
释义	datum line datum line - The horizontal or base line, from which the heights of points are reckoned or measured, as in the plan of a railway, etc.See also related terms for measured. datum line datum line [′dad·əm ‚līn] (navigation) reference line reference line Any line which can serve as a reference or base for the measurement of other quantities. datum line A baseline, or reference line, from which calculations or measurements are taken. See datum. MedicalSeedatum plane
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datum line