地球上七个海洋实际仅仅是五个海洋本体,这五个海洋是大西洋,太平洋,印度洋,北极和南极。其中前三个被认为是清楚的海洋,其余两个是在地球的南北两极端。全世界海洋的总表面积为地球表面的70.8%,其面积为361.095×10~6公里~2。在赤道以南海水较多,占海洋总面积的80.9%。北半球水占其表面积的60.7%。因此,大多数可能勘探的海洋已从世界能源的后院转到 The seven oceans on the earth are actually only five oceans. The five oceans are the Atlantic Ocean, the Pacific Ocean, the Indian Ocean, the North Pole and the Antarctic. The first three of them are considered as clear oceans and the other two are on the north and south poles of the earth. The total surface area of ​​the world’s oceans is 70.8% of the Earth’s surface with an area of ​​361.095 × 10-6 km2. Sea water south of the equator more, accounting for 80.9% of the total area of ​​the ocean. The northern hemisphere accounts for 60.7% of its surface area. As a result, most of the possible exploration oceans have been diverted from the world energy backyard