A ball of heavy metal attached by a line to a quadrant or other scientific instrument.
| 单词 | θ7435 |
| 释义 | the world > the earth > earth sciences > geography > map-making > surveying > [noun] > surveying instruments > part of a surveying instrument (9) plummet1866 A ball of heavy metal attached by a line to a quadrant or other scientific instrument. Subcategories:— sight on a surveying instrument (3) — index arm (2) — needle (1) — top of tripod (1) — movable ruler (1) |
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英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。