词组短语
plumb line 铅垂线（等于plumb rule）
同近义词辨析
upright, vertical, erect, perpendicular, plumb
这组词都有“垂直的、竖式的”的意思，其区别是：
upright普通用词，指竖立、笔直而不是倾斜、倒塌的。
vertical指与平面、水平线或基线成直角或几乎成直角向上延伸至顶点的物体。也可指呈直线上升或下降的。
erect指笔直挺拔，而非倾斜、佝偻、弯曲或倒塌的。
perpendicular指与水平线形成90度的线或面，或朝垂直方面延伸的，尤指向下的急剧运动。
plumb建筑上用词，凭锤球评判某物是否完全垂直。
双语例句
用作动词(v.)
- We need to plumb the line.
我们需要用铅垂测量这条线。 - We begin to plumb the mysteries of the universe.
我们开始探索宇宙的奥秘。 - It was unprofitable to plumb that sort of thing.
这种事弄个水落石出没有什么好处。
用作名词(n.)
- Bricklayers and carpenters often use plumb lines .
瓦工和木工经常使用铅垂线。 - The plumB line is always perpendicular to the horizontal plane.
铅垂线总是垂直于水平面的。
用作形容词(adj.)
- Is this wall plumb?
这墙是垂直的吗？
用作副词(adv.)
- The bullet hit him plumb between the eyes.
子弹正好打在他的双眼之间。
权威例句
Automatic level and plumb toolLevel/plumb indicator with tilt compensationAutomatic level and plumb toolHistorical Perspectives: Studies in English Thought and Society in Honour of J. H. Plumb. Edited by Neil...The "Reading the mind in the eyes"Test revised version: A study with normal adults, and adults with Asperger syndrome or high-funct...Leaf Senescence: Correlated with Increased Levels of Membrane Permeability and Lipid Peroxidation, and Decreased Levels of Superoxid...A Geologic Time ScaleFunctional consequences of endothelial nitric oxide synthase uncoupling in congestive cardiac failureRasagiline improves quality of life in patients with early Parkinson's diseaseEffects of coenzyme Q10 in early Parkinson disease: evidence of slowing of the functional decline
