由于世界人口的迅猛增长 ,陆地空间越来越显得拥挤 ,从而使海洋空间的开发利用越来越为世人所关注。步入新世纪后 ,海洋将成为人类活动的广阔空间 ,所以世界各大国及沿海国家都把视角放在调查和研究海洋上来。下面就四大洋做一简介。一、太平洋太平洋水平轮廓近似圆形 ,它不仅 Due to the rapid growth of the world’s population, terrestrial space is becoming more and more crowded, making development and utilization of marine space more and more concerned by the world. After entering the new century, the ocean will become a vast space for human activities. Therefore, the world’s major powers and coastal countries all focus their attention on the investigation and study of the oceans. Here’s a brief introduction of the four oceans. First, the Pacific Ocean horizontal profile is approximately circular, it is not only