spherical triangle

名词 n.
中文释义

英文释义

名词 n.
  1. A triangle, described on the surface of the sphere, whose each side is an arc of some great circle.
    — If the three sides of a spherical triangle be each of them equal to a quadrant, the polar triangle will coincide with it; for each of the angular points will be the pole of the side opposite to it.

词形变化

spherical triangles plural
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