《伟大工程巡礼：巨大挖掘机》在线观看和下载

剧情内容介绍

伟大工程巡礼：巨大挖掘机原名：Megastructures: Rock Eaters of Iceland，

In Iceland, a giant tunnel boring machine called 'Jaws' has chewed up nine miles of basalt to aid a hydroelectric *******. See the rock cruncher at work as it burrows deep down.

发布于2006年。