This term is synonymous with the term main station or Direct Exchange Line (DEL) which are commonly used in telecommunication documents.

这个术语与通信文献中常见的主站或直拨交换线(DEL)是同义的。

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The relationship between the two inventors led to a partially implemented scheme to install a telegraph line from the New York Merchant's Exchange to Sandy Hook, New Jersey.

基于这两位发明家之间的关系，他们部分实现了在纽约商品交易和新泽西的桑迪·胡克(Sandy Hook)之间架设电报线的计划。

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The scientists can, in turn, exchange information with front-line health-care workers and find out about the real problems in the field and how the tools are being used.

反过来，科学家又可与前线卫生保健人员交流信息，并了解该领域中存在的真正问题以及工具如何得到使用。

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Sources in Mogadishu tell VOA that there are reports that some members of a hard-line Islamist insurgent group called Hisbul Islam arranged for the release of Obriere in exchange for a ransom.

VOA: standard.2009.08.26

When I entered politics I had less, but the share prices went up in the stock exchange, in line with other stocks, not only mine.

FORBES: Q and A: Thaksin Sits Down With

Broadband, which allows high-speed information exchange over a phone line, has yet to take off in great numbers in Europe.

BBC: The Xbox

It now hosts the world's biggest carbon-trading exchange and has a profitable line in renewable-energy finance.

ECONOMIST: Renewable energy