total eclipse begins meaning in English

全食始

Total eclipse begins : instant of first internal tangency of moon with the umbra
食既：月球进入地球本影，并与本影第一次内切。
" total eclipse begins " - when the moon touches the umbra internally , at this time , the moon is totally immersed in the umbra and total eclipse starts
当月球和本影内切时称为食既，这时月球全部进入本影，全食开始月球中心和地影中心距离最近时称为食甚
" total eclipse begins " - when the moon touches the umbra internally , at this time , the moon is totally immersed in the umbra and total eclipse starts
月球同本影接触时称为初亏，这时月偏食开始当月球和本影内切时称为食既，这时月球全部进入本影，全食开始