Its general accuracy could be checked against easily observed phenomena, like the rising and setting of the sun.
它大体的准确性可以通过日出日落等很容易观测的现象来证明。
Some changes happen only once in a while, like an eclipse of the moon. Others happen repeatedly, like the rising and setting of the sun.
某些变化只是偶尔发生一次,就像月食一样,其他变化则重复发生,如同日升日落一般。
The pits are positioned on celestial alignment at the site and may have contained stones, posts or fires to mark the rising and setting of the sun.
土坑按照天上能量网格形式在现场分布,可能载有石头,柱子或火,以纪念太阳的升起和西落。
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