plumb line
noun [ C ] uk/ˈplʌm ˌlaɪn/ us/ˈplʌm ˌlaɪn/
(测垂直面或水深的)铅垂线,重锤线
a piece of string with a weight attached to one end, used either to test if something vertical, such as a wall, is exactly straight, or to find the depth of water
单词 | plumb line |
释义 | plumb line noun [ C ] uk/ˈplʌm ˌlaɪn/ us/ˈplʌm ˌlaɪn/ (测垂直面或水深的)铅垂线,重锤线 a piece of string with a weight attached to one end, used either to test if something vertical, such as a wall, is exactly straight, or to find the depth of water |
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