plumb line 详细解释

plumb line

n. 铅垂线, 测铅线

词形变化

形容词: plumbable | 动词过去式: plumbed | 动词过去分词: plumbed | 动词现在分词: plumbing | 动词第三人称单数: plumbs |

英英释义

名词 plumb line:

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

同义词:perpendicular

补充

plumb lineplumb linen.1.铅垂线