plumb line
英 [ˈplʌm laɪn]
美 [ˈplʌm laɪn]
n. (测水深或垂直面用的)重锤线，铅垂线
牛津词典
noun
- （测水深或垂直面用的）重锤线，铅垂线
a piece of thick string with a weight attached to one end, used to find the depth of water or to test whether a wall, etc. is straight
柯林斯词典
- （检查垂直度的）铅垂线
Aplumb lineis a piece of string with a weight attached to the end that is used to check that something such as a wall is vertical or that it slopes at the correct angle.
英英释义
noun
- a cord from which a metal weight is suspended pointing directly to the earth's center of gravity
双语例句
- This article gives an easy way in which laser plumb line is set up by means of He-Ne laser in space with the liquid level as the base.
本文叙述以液面为基准面，用小型氦-氖激光器在空间建立激光垂直线的简易方法。 - The installation of boosters is made by means of lofting plumb line to ensure the mounting precision and symmetry, resulting in accurate force transmition direction, and avoiding the emergence of additional moments.
本文采用放样吊线法安装助推器，确保安装精度和左右对称，从而保证了力的精确传递方向，避免了附加力矩的产生。 - The metal bob of a plumb line.
一种在铅锤线下的金属球。 - Reconstruction and analysis of automatic plumb line monitoring system of Dongjiang dam
东江拱坝垂线自动监测系统改造实践及成果分析 - Software of plumb line monitoring system and its application
垂线测量数据管理软件的研制及应用 - Between perpendiculars adjust with a plumb line so as to make vertical.
垂线间垂线间垂线间的用铅垂线调整使得垂直。 - Vertical diagonal time section a flat surface at right angles to a plumb line.
对角线垂直时间剖面一个与铅垂线绝对成直角的平面。 - Due to machining accuracy and limited leveling precision of gimbals, there is always an inconsistency between the visual axis and the vertical rotational axis of the digital zenith camera and the plumb line, which leads to a big deviation between measurement precision and theoretical precision.
由于机械加工精度和常平架的调平精度有限，天顶摄影仪的视轴、垂直旋转轴与铅垂线总是存在不一致，导致测量精度与理论精度存在很大的偏差。 - The plumb line deviation method of determining heights from GPS in local area
GPS在小区域内测定点位高程应用中的垂线偏差方法 - Adjust with a plumb line so as to make vertical. Then the wire between two posts gets lower in the middle.
用铅垂线调整使得垂直。这样，在两根电线杆中间的电线就略为下垂一些。