首頁>> 英漢字典>> P開頭詞條>>plumb line的意思

plumb line

讀音

漢語翻譯

鉛垂線

英文解釋:

名詞 plumb line:

  1. a cord from which a metal weight is suspended pointing directly to the earth's center of gravity; used to determine the vertical from a given point
    同義詞:perpendicular

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