详细解释:a. 距离相等的, 等距的
词型变化：
副词:equidistantly名词:equidistance英语解释：
形容词 equidistant:
the same distance apart at every point例句：
A plane curve formed by the locus of points equidistant from a fixed line and a fixed point not on the line.抛物线到一固定直线和不在直线上某一固定点等距的点的轨迹所形成的平面曲线