Other areas under investigation include magnetism, landmarks, coastlines, sonar, and even smells.
其他正在调查的领域包括磁性、地标、海岸线、声纳甚至气味。
2
According to the IRENA (the International Renewable Energy Agency) , by just using 2% of our coastlines, we can produce 4,383 TWh of ocean power each year, enough to meet 4% of the world's electricity needs.