资讯

PBS3 天
The potential impacts of mining rare minerals from the ocean floor
Along certain parts of the ocean floor lies a bounty of rare minerals ... visited in Papua New Guinea last year was trialing a new system that essentially sent a huge 12-ton hydraulically-powered ...
PBS4 天
The potential impacts of mining the ocean floor
Along certain parts of the ocean floor lies a bounty of rare minerals ... visited in Papua New Guinea last year was trialing a new system that essentially sent a huge 12-ton hydraulically-powered ...