1. 抛物线抛物面反射器：parabola 抛物线 | parabola 抛物线抛物面反射器 | parabolic antenna 抛物面天线

2. 抛物面反射器：para 帕拉胶 | parabola 抛物面反射器 | parabola 抛物线

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3. 拋物線函數式：Par value stock 面值股票 | Parabola 拋物線函數式 | paradox of value 價值的矛盾

1. 抛物线
    A parabola is a type of curve such as the path of something that is thrown up into the air and comes down in a different place.

1. a plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the curve