潮汐是由月球和太阳的引力，以及地球自转产生的惯性力共同作用下，引起的海水周期性涨落现象。简单来说，就是海水每天都会有规律地升高和降低。涨潮时，海水水位上升，淹没部分陆地；退潮时，海水水位下降，露出海滩。这种周而复始的运动，就是潮汐。©Linda ...

Holding a cup of coffee made by a robot powered by green electricity, strolling leisurely around Dongyu Island, where solar ...

BOAO, Mar 27 (China Economic Net) - At the Boao Forum for Asia (BFA) panel session titled "Inclusive Globalization that Benefits All: Pathways and Actions", Pakistan's Federal Minister for Finance & R ...

BOAO, Hainan, March 25 (Xinhua) -- China's Boao has announced the establishment of its first zero-carbon zone, a significant ...