Also, given a reasonable network infrastructure our web servers will be isolated in the DMZ and will have to access some application server which, in turn, will communicate with the DB.

同时假设网络结构设计合理，Web服务器在D MZ区域中得到隔离，它与应用服务器交互，应用服务器再与数据库服务器通讯。

youdao

How much does DB Netz, its network subsidiary, favour DB's freight, local and long-distance subsidiaries?

ECONOMIST: German railways

On 7 June a walk-out by of drivers and other workers in a pay dispute with operating company DB Regio Tyne and Wear (DBTW) brought the network to a standstill, with further action planned on 21 June.

BBC: Tyne and Wear Metro cleaners on 48-hour strike