In Iceland, a giant tunnel boring machine called 'Jaws' has chewed up nine miles of basalt to aid a hydroelectric project. See the rock cruncher at work as it burrows deep down.
小草视频为您提供了包括最新电影排行榜，还同时提供了电视剧排行榜电影电视剧以及动画综艺节目的在线观看服务。希望您能喜欢并能收藏我们的网址http://www.yjytv.com
