“回归线”用英语怎么说？

“回归线”的拼音为：huí guī xiàn...

南北回归线是日照直射点的最远纬度.Tropic of capricorn and cancer is the furthest latitude of sunlight.我们在地图上找到了回归线的位置.We find the position of the tropics on the map.我们怎样衡量我们的样本回归线拟合样本数据有多好 呢 ?How do we think about how well our sample reg...