steradian

/stuh-rey-dee-uhn/US // stəˈreɪ di ən //UK // (stəˈreɪdɪən) //

立体声,立体声学,立体人,立体电路

Definitions

n.名词 noun

1
Geometry.
- : a solid angle at the center of a sphere subtending a section on the surface equal in area to the square of the radius of the sphere. Abbreviation: sr