circumferentor
/ser-kuhm-fuh-ren-ter/US // sərˈkʌm fəˌrɛn tər //
环绕者,圆周率,圆周仪,周围人
Definitions
n.名词 noun
- 1
Surveying.
- : an alidade equipped with a compass and two diametrically opposed vertical arms with slits for sighting through.
Examples
An improvement which was no doubt introduced at a very early day is the measuring wheel or circumferentor.
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