We anticipated plate movements in the Northern Hemisphere, in the northern Pacific, to occur after the Equatorial plate movements, but the Northern Hemisphere has begun some of its movements early.
我们预期着北半球的板块运动,在北太平洋,会发生在赤道上的板块运动之后,但北半球已经在就开始了一部分运动。
An equatorial sundial is an ancient scientific equipment to tell time by using the shadow from solar projection. It consists of a sundial plate, a gnomon and a base.
赤道式日晷,是古人利用太阳投影测时的科学仪器,由晷盘、晷针和底座组成。
An equatorial sundial is an ancient scientific equipment to tell time by using the shadow from solar projection. It consists of a sundial plate, a gnomon and a base.
赤道式日晷,是古人利用太阳投影测时的科学仪器,由晷盘、晷针和底座组成。
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