三峽大壩一大作用直接是長江水由二類變為四類水質。四類逆變為二類需要的費用,
4,000億立方米*5圓=20,000億
三峽大壩一大作用直接是長江水由二類變為四類水質。四類逆變為二類需要的費用,
4,000億立方米*5圓=20,000億
• 說說水質如何怎樣哪般惡化, -弓尒- ♂ (217 bytes) () 07/24/2019 postreply 16:50:25
• 您就別為難那些張口就來的人了!嘴是兩張皮,讓它們翻飛去吧 -一塌不糊塗- ♂ (0 bytes) () 07/24/2019 postreply 17:48:36
• 瞎抹黑,有大BA水會更平穩的流向下遊,幹枯期要少,有利水質。而不是雨季都流海裏了,旱季水少。 -國人情懷- ♂ (0 bytes) () 07/24/2019 postreply 20:19:35
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