With the design and construction conditions of Suzhoujie station, the author analyzes and studies the construction methods with PBA underground cut construction method in metro station.

结合苏州街站的设计与施工情况，对地铁车站使用PBA法暗挖施工时的施工工法进行了分析研究。

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In the sixties, seventies and eighties, the fact of having to go to the underground was more clear cut, but since the advent of digital technology and the web, such a relation has become confused.

在六十，七十和八十年代不得不变成地下乐团的事实越发明确，随着数字技术和网络的到来，这种关系变得模糊不清。

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Within these insulated underground passages the molten lava can continue to flow for many miles, until the source of the lava gets cut off, leaving behind a 'cave.

在这些绝缘地下通道，熔岩流能够继续对许多英里直到熔岩源，获取切断，留下了'离开洞穴。

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An elderly Georgian woman was scavenging for copper to sell as scrap when she accidentally sliced through an underground cable and cut off internet services to all of neighbouring Armenia, it emerged on Wednesday.

FORBES: Elderly Woman Shuts Down Armenian Internet

Thirty-three miners have been trapped 2, 300 feet underground since a rockslide cut off their exit route on August 5.

CNN: New drill arrives in Chile with great fanfare

In the longer term, emissions will be cut by switching the London Underground to renewable energy.

CNN: London leads climate change fight