If a moment of Earth and the moon Benying than the distance between the moon, the moon on Earth was Benying sweep of the area will be able to see Riquan Shi.
如果某个时刻月球本影比地球与月球之间的距离大，地球上被月球本影扫过的地带就可以看到日全食。
2
The sweep was the moon penumbral zone can see the partial eclipse, the partial eclipse in the region-wide water from the area near, the greater the extent of the partial eclipse.
被月球半影扫过的地带均可以看到日偏食，在偏食区内离全食区越近，偏食的程度就越大。
3
By the end of September things were so bad that the 1st battalion had to launch another operation to sweep clean an area it had supposedly held for months.