详细解释:n. 赤道
【医】 赤道, 中纬线
英语解释：
名词 equator:
an imaginary line around the Earth forming the great circle that is equidistant from the north and south polesa circle dividing a sphere or other surface into two usually equal and symmetrical parts例句：
Relating to or being latitudes nearest to the equator.(纬度)低的纬度接近赤道的，或与之有关的