| 释义 |
DEFINITIVE EXAMPLES 权威例句〔perpendicular〕A device, such as a plumb line, used in marking the vertical from a given point.垂规,铅垂线:一种装置,如铅垂线,用于从给定点标记竖直方向美国传统〔plumb bob〕A usually conical metal weight attached to the end of a plumb line.铅锤,垂球:系在一根垂线末端的通常为圆锥形的金属重物美国传统〔plumb rule〕A narrow strip of wood with a plumb line and bob attached, used to test verticality.垂规:带有一段铅锤线和铅锤的一条狭窄的木条,用来检验垂直度美国传统 |