取決於鐵的濃度,一般鐵的濃度低,肉眼看不出區別,但日積月累的影響,水岸線上就明顯
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• 那些黃色非常耀眼,謝謝信息 -polebear- ♀ (0 bytes) () 12/20/2023 postreply 12:26:42
• 那些黃色非常耀眼,謝謝信息 -polebear- ♀ (0 bytes) () 12/20/2023 postreply 12:26:42
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