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伟大工程巡礼:巨大挖掘机 Megastructures: Rock Eaters of Iceland
类型:纪录片电影
导演: 编剧:
主演:
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.