释义 |
circumferentor
circumferentor (səˈkʌmfərəntə) n1. an instrument that measures the circumference of a tyre2. (Surveying) an instrument used to record angles and bearings circumferentor
circumferentor[sər′kəm·fə‚ren·tər] (engineering) A horizontal compass used in surveying that has arms diametrically placed with vertical slit sights in them. |