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Parabola
01
放物線
(geometry) a symmetrical open curve that is similar to the path of an object thrown into the air passes till it falls back to earth
例
The path of a thrown ball forms a parabola.
The quadratic function’s graph is always a parabola.
Designers use parabolas to create efficient lighting fixtures.
The satellite dish is shaped like a parabola to focus signals.
The artist drew a parabola to represent the path of the flying object.
