Robotics: it might make sense to mine metals from the sea bed, rather than from terrestrial mines. But it will require some nifty technology.

机器人技术：该项技术可能会使从深海而不是陆地矿藏开采金属矿成为可能。但与此同时也将需要一些更加精巧的技术。

youdao

Eogene System is the fundus of terrestrial heat exploitation and Neogene System is the principal heat reservoir and exploitation bed of Henan plain.

老第三系(E)是河南平原地热开发基底，新第三系(N)是主要热储层和开采层。

youdao