...态文明建设;云南;淡水湖泊 [gap=702]Key words: China; ecological civilization construction; Yunnan; fresh water lake ...
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Superior lake is the biggest fresh water lake in the world.
苏必利尔湖是世界上最大的淡水湖。
Dongting Lake is very important fresh water Lake in Hunan, China even in the world.
洞庭湖是湖南省、中国乃至世界上极其重要的淡水湖泊之一。
In fresh water lake, trace elements belonging to hard acid exist mainly as free ion.
在淡水湖泊中,属于硬酸的元素主要以游离离子存在。
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