3.0分
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.
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特种突袭之逆战
3个工作日
9秒钟
传送法
重复两次
Umjolo：都怪恋爱脑
切换片源
