AC cable, since the required lengths have not been sufficient to make DC cable economically feasible.

目前主要选择交流电缆，因输电的距离未足以使选择直流电缆在经济上可行。

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It has a clever design which allows the DC cable to be wound neatly around itself for easy cable storage.

还有一个聪明的设计，可以把DC电线整齐地缠绕在上面，方便收藏。

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Nowadays the introduction regarding the design of the DC cable is so poor that many people think the design of DC cable is the same as that of the AC cable.

目前直流电缆设计方面的介绍较少，以致不少人误认为直流电缆的设计与交流电缆设计一样。

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Designed to be lightweight and cheap to produce, the robotic bicep upgrade uses a (mostly) aluminum frame, battery-powered DC motor, cable drive system, racket braking and thumbstick controller for movement, with a BeagleBone board supervising the electronics that pull it all together.

ENGADGET: UPenn's TitanArm exoskeleton prototype makes light work of heavy lifting (video)

This significant increase in movie content will begin launching in Comcast's Xfinity markets in Philadelphia and Washington, DC, and will continue rolling out to Comcast Digital Cable customers across the country.

ENGADGET: Comcast's HD VOD selections continue to approach infinity, or at least 3,000