The fire engine can carry extra tanks or refilling equipment, and a firefighter spends a limited time in the burning building.

消防车可以装载额外的气瓶或者充气设备，而消防员在着火建筑内停留时间也有限。

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Three years ago, the company negotiated with a potential customer who asked for a better price and extra brewing equipment.

就在三年前，该公司与某个客户开始了长期的磋商。

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Apart from the need for extra equipment, this approach poses various problems.

不仅需要额外的设备，这种方法还会引起各种问题。

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Combined with some very ad hoc staging and help from the BBC's technical teams, the coordination resulted in a surprisingly smooth interview about flooding in northeastern England with relatively few hints of the extra-tiny recording equipment involved.

ENGADGET: BBC News Channel conducts live video interview over smartphone, goes where satellites can't (update with video)

On the other hand, those extra dollars do tend to pay for cutting-edge treatments and equipment the rest of the world can only dream of.

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By creating an ad hoc network, the XDJ-AERO can sync with up to four Wi-Fi enabled devices at once, without the need for any extra equipment.

ENGADGET: Pioneer's new WiFi-enabled XDJ-AERO controller says goodbye wires, hello dancefloor (video)