这一结果对研究关家沟组地层对比、时代划分提供了依据。
The result is significant to study the geological age and stratigraphic subdivision in Guanjiagou Formation.
历史时代划分的标准和基础是人的内在价值扩充体现的能力、水平和效果。
Standards and the division of history based on the intrinsic value of human capacity expansion reflects the level and effectiveness.
占星家们管这段时期为一个大年，并且将其划分为12个大月或称之为占星学意义上“时代”，每一个时代持续2 147年，对应十二星座符号之一。
Astrologers call this period aGreat Year, and they divide it into 12 Great Months or astrological"ages", each about 2, 147 years long. Each age corresponds to one of thesigns of the zodiac.
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