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世界之最:盐度最低的海
添加时间:2025-05-16 15:46:10 浏览次数: 作者:未知
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  • The Baltic Sea is the world’s least saline sea, with an average salinity1 of just 7–8 grams per kilogram of water (0.7–0.8%), far below the global ocean average of 35‰. This is due to its semi-enclosed geography, high freshwater input2 from rivers (e.g., the Neva and Vistula), limited exchange with the North Sea, and heavy rainfall. Its northern parts, like the Gulf3 of Bothnia, can even drop to 2‰. The low salinity supports unique ecosystems4 but also causes winter freezing.

    世界上盐度最低的海是波罗的海,平均盐度仅为7–8‰(0.7–0.8%),远低于全球海水平均盐度(35‰)。成因包括半封闭地形、大量河流淡水注入(如涅瓦河、维斯瓦河)、与北海交换受限及降水丰富。其北部波的尼亚湾盐度可低至2‰。低盐度孕育了独特生态,但也导致冬季结冰。

     单词标签: salinity  input  gulf  ecosystems 


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    1 salinity [sə'lɪnətɪ] uYvx9   第10级
    n.盐分;咸度;盐浓度;咸性
    参考例句:
    • In the sea water sampled the salinity is two parts per thousand. 在取样的海水中,盐度为千分之二。
    • In many sedimentary basins the salinity of the formation water increases with depth or compaction. 在许多沉积盆地中,地层水的含盐量随深度或压实作用而增高。
    2 input [ˈɪnpʊt] X6lxm   第7级
    n.输入(物);投入;vt.把(数据等)输入计算机
    参考例句:
    • I will forever be grateful for his considerable input. 我将永远感激他的大量投入。
    • All this information had to be input onto the computer. 所有这些信息都必须输入计算机。
    3 gulf [gʌlf] 1e0xp   第7级
    n.海湾;深渊,鸿沟;分歧,隔阂
    参考例句:
    • The gulf between the two leaders cannot be bridged. 两位领导人之间的鸿沟难以跨越。
    • There is a gulf between the two cities. 这两座城市间有个海湾。
    4 ecosystems [ˈekəʊˌsɪstəmz] 94cb0e40a815bea1157ac8aab9a5380d   第8级
    n.生态系统( ecosystem的名词复数 )
    参考例句:
    • There are highly sensitive and delicately balanced ecosystems in the forest. 森林里有高度敏感、灵敏平衡的各种生态系统。 来自《简明英汉词典》
    • Madagascar's ecosystems range from rainforest to semi-desert. 马达加斯加生态系统类型多样,从雨林到半荒漠等不一而足。 来自辞典例句

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