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。
Viewing the Sun's harsh light should only be done through protective equipment - proper solar glasses and solar telescopes, or through a pinhole projection system.
直视骄阳是危险的，只能通过适合的日食镜、配有滤光片的望远镜或者针孔投影系统观看日食。
The projection was based on research that identified how low solar activity affected winter weather patterns.
这项推测是根据一项研究得出的，该研究辨析出了太阳活动减弱会以何种方式影响到冬季的气候模式。
To meet the 2050 projection, 46, 000 square miles of land would be needed for photovoltaic and concentrated solar power installations.
为了满足2050计划的要求，将需要46000平方英里的土地来架设聚光太阳能发电及太阳能电池厂。
To meet the 2050 projection, 46, 000 square miles of land would be needed for photovoltaic and concentrated solar power installations.
为了满足2050计划的要求，将需要46000平方英里的土地来架设聚光太阳能发电及太阳能电池厂。
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