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几篇科普文章翻译~英翻中!

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/24 02:14:32
几篇科普文章翻译~英翻中!
Oceans Today
Dip a toe in any ocean and you are linked to all the world’s oceans as they are one continuous mass. The largest expanses are called oceans while the smaller ones (usually close to, or partly enclosed by, land) are called seas. Two-thirds of the earth’s surface is covered by sea water which makes up to 97 percent of the planet’s entire water supply. Sea water’s temperature varies- it is colder at the surface in polar regions than in the tropics. Generally, sea water gets colder with depth. Sea water’s salinity varies from that of the saltiest waters (such as the desert-bound Red Sea with a high evaporation rate and little inflow of freshwater) to one of the least salty (the Baltic Sea where there is a high inflow of freshwater from rivers).
The world’s five oceans, ranging from the largest to the smallest, are the Pacific, Atlantic, Indian, Southern, and Arctic. The Pacific Ocean covers 153 million sq km and is about 13 times the size of the Arctic Ocean. The Arctic Ocean’s centre is permanently covered by a layer of sea ice which grows larger in winter and shrinks in summer by melting. Over half the Southern Ocean is also frozen in winter and sea ice still fringes the continent of Antarctica during the summer. The average depth of all the oceans is 3,650 m with the deepest part in the Pacific Ocean at 10,924 m in the Mariana Trench, east of the Philippines.
Ocean Structure
Shoreline
Shorelines are where oceans and seas meet land. The plants and animals that call this transition zone home have interesting adaptations. Some organisms make the shallow waters of the shore their home. Others live on land, but have adjusted to higher levels of salt in their environment.
Intertidal Zone
The intertidal zone is the area exposed between high and low tides. In the intertidal zone, part of the day is spent in open air and the rest of the day is spent covered in ocean water. High tide brings with it nutrients and food. When it goes out, the tide takes with it waste products and disperses eggs and larvae.
Sublittoral Zone
The benthic region extending from mean low water (40-60 meters) to a depth of about 200 meters, or the edge of a continental shelf, beyond which most abundant attached plants do not grow.
Bathyal Zone
The bathyal zone extends from a depth of 1000 to 4000 meters below the surface. Its average temperature hovers at about 4℃. Sunlight does not reach this zone, so it is known as the midnight zone. Squid, octopus, sea star are common in this zone.
海洋今天
一个脚趾头浸在任何海洋与您联系的世界上所有的海洋因为它们是一个连续的质量.最大的大片被称为海洋,而较小的(通常接近或部分封闭的,土地)被称为海域.三分之二的地球表面所覆盖的海水使高达百分之九十七地球的整个供水.海水的温度不同,它是在寒冷的表面在极地区域比在热带地区.一般而言,海水得到更冷与深度.海水的含盐量不同,在saltiest水域(如沙漠约束红海的高蒸发率和很少的淡水流入) ,以一个最不咸(波罗的海那里是一个高的淡水流入从河流) .
世界五大海洋,从最大到最小,是太平洋,大西洋,印度洋,南区,和北极.太平洋覆盖1.53亿平方公里,约13倍的规模北冰洋.北冰洋的中心是永久覆盖了一层海冰生长较大的冬季和夏季缩小融化.超过一半的南大洋还冻结在冬季和海冰仍在大陆边缘的南极在夏季.平均深度为所有的海洋与三六五〇米最深的部分在太平洋上10924米在马里亚纳海沟,东部的菲律宾.
海洋结构
海岸线
海岸线是在海洋符合土地.在植物和动物,要求这个过渡区家中有趣的修改.一些生物体使浅水水域岸边家园.其他生活在陆地上,但调整到更高水平的盐在自己的环境.
潮间带
潮间带是该地区面临的高和低潮汐.在潮间带的一部分,每天花费在露天和其余每天花费包括在海洋水.高潮带来的营养和食品.当它出门,潮流与需要的产品和废物分散卵和幼虫.
Sublittoral区
海底区域的扩大意味着从低水( 40-60米)的深度约200米,或边缘的大陆架,超出这一最丰富的重视植物并没有增长.
深海区
在深海区延伸的深度从1000至4000米以下的表面.其平均气温徘徊在4 ℃左右.日光没有达到这个区域,因此它被称为午夜区.鱿鱼,章鱼,海星是共同在这一地区.