plumb bob

plumb bob 基本解释

铅锤；垂球

机械

重点词汇

• bobvt. 剪短, 敲击 vi. 振动, 上下跳动 n. 短发, 悬挂的饰品, 浮子, 摆动, 轻敲, 5便士
• plumbn. 铅锤, 垂直 a. 垂直的 vt. 使垂直, 探测 vi. 成垂直

plumb bob 双语例句

1. 1、 If the mass in question is a plumb bob, the horizontal component of F is important.
   如果所讨论的质量是一摆锤，则重要的是F的水平分量。
2. 2、 Due to its huge height, its urgent time schedule and strict requirement of fine quality, its construction has been duly guided and controlled by application of the JD-91 type laser-heavy plumb bob surveying apparatus with a double controlled axial line ex
   由于楼层高、工期紧，为确保主体结构工程质量，垂直度控制采用激光&重锤双控轴线引伸技术，使用JD-91型建设激光测量仪。

plumb bob 英英释义

noun

1. the metal bob of a plumb line

   Synonym:    plumbplummet