平时人们总是喜欢把大海与洋联在一起,说成海洋。其实,海与洋在海洋学的观点来说是两个不同的概念,是有着很大区别的。海洋学上所谓的“洋”,面积广阔,深度大,一般水深都在二三千米以上。大洋里有着独立的潮汐和强大的海流系统,而且大洋的温度、盐度,水色和透明度的年变化不大,不易受到大陆的影响。海比洋小,海是洋的和一个组成部分。不但面 Usually people always like to put the ocean together with the ocean, said to the ocean. In fact, the two different concepts of ocean and ocean in terms of oceanography are very different. Oceanographic so-called “ocean”, a vast area, the depth of the general depth of more than two or three kilometers. The ocean has its own independent tides and a strong current system, and its annual changes in temperature, salinity, water color and transparency are not significant and are not easily affected by the Mainland. The sea is smaller and the sea is an ocean and an integral part of it. Not only face