日食的过程可分为五个阶段，而只有日全食才拥有全部过程，日偏食和日环食则没有食既和生光。初亏：太阳与月球第一次外切，太阳光球西面刚切入月球东面的时刻。食既：太阳与月球第一次内切，太阳光球刚完全被月球掩蔽的时刻。食甚：月球中心与太阳中心距离最小的时刻。生光：太阳与月球第二次内切，太阳光球刚从月球西面露出来的时刻。复圆：太阳与月球第二次外切，太阳光球刚完全离开月球背后的时刻。初亏、食既、生光和复圆又分别称为第一、第二、第三、第四接触。

　　The process of solar eclipse

　　The process of the solar eclipse can be divided into five phases, but only to have the entire process of Riquan Shi, and the partial eclipse on the Environment and Food is not potable both light and Health. Early losses: the sun and the moon, the first cut, just west of the sun-Cut east of the moon moment. Fresh both: the sun and the moon within the first cut, sun-moon has just been totally masking the moment. Very fresh: the sun and the moon Centre Centre at the smallest distance. - Health: the sun and the moon, the second cut, sun-exposed just west of the moon moment. - Round: the sun and the moon, the second cut, sun-moon has just completely left behind the moment. Early losses, both fresh, light and health-circular also called the first, second, third, fourth contact。