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沒有什麼技術，需要海域，需要毛竹，需要將18米的毛竹打到海里，需要船，需要在陸地上將紫菜繩子綁好，需要將繩架弄到海里綁到18米的毛竹上，需要紫菜苗，需要光合作用需要需要還是需要…………

紫菜營養價值高，人工技術