... 海底集声器 submarine sound receiver; 海底建筑物 sea-floor structure; 海底均衡器 submarine equalizer; ...
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The earliest evidence for terrestrial life is the organic chemical structure of a rock found on the surface in Greenland. The surface was thought to be from an ancient sea floor sediment.
地下生物的最早证据是在格陵兰岛地表发现的有机化学结构的岩石,被认为来自古代的海底沉积物。
In order to mine the sea floor resources, the collectors with different structure have been developed in the countries concerned in the world.
为了采集海底资源,世界有关国家研制了不同结构的集矿机。
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