求翻译：海上项目主要包括投放人工鱼礁、修建海上垂钓休闲竞技中心和海上船艇运动中心等。项目预计总投资18亿人民币，可合资、合作或由投资商独立开发。是什么意思？

Offshore projects, including artificial reefs, the construction of marine recreational fishing athletic center and sea craft and sports center. The project is expected to total investment of 1.8 billion yuan, can be a joint venture, cooperation or independently developed by the investors.

Sea Launch items include artificial reefs, built sea fishing and leisure sports center and the sea sports center, and other vessels. It is anticipated that the project total investment RMB 1.8 billion joint venture, partnership, or by investment dealers independent development.

The marine project mainly includes the delivery artificial fish reef, the construction marine fishes the leisure athletics center and the marine vessel center of motion and so on.The project estimated the total investment 1,800,000,000 Renminbi, may pool capital, the cooperation or develop independe

Offshore project consists mainly of artificial fish reef, construction of offshore fishing boat and sea sports centre and other leisure sports centre. Project total investment of 1.8 billion yuan is expected, joint venture, cooperation or independently developed by investors.

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