英语词汇“backsight”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	backsight
释义	WordReference Random House Unabridged Dictionary of American English © 2024 back•sight (bak′sīt′),USA pronunciation n. [Survey.] Surveyinga sight on a previously occupied instrument station. Surveying(in leveling) the reading on a rod that is held on a point of known elevation, used in computing the elevation of the instrument. back² + sight 1840–50
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