perihelion
/.peri'hi:liәn/
当代词频: #26,869
中文释义
n. 近日点, 最高点, 顶点
英文释义
n. periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun
n. 近日点, 最高点, 顶点
n. periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun