Original high-quality and reasonable pneumatic air route design, coupons hot compressed air pressure control work, no external power supply, k work safety is stable and reliable.

采用优质气动原件及合理的气路设计，券压缩空气控制压烫工作，无需外接电源，工作稳定可靠安全。

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The special feature of the demonstrator is that the sensing elements have no need of an external power supply.

这种演示装置的特点在于，其传感器件不需要外部电源。

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Perfect for slipping into a laptop bag or pocket, all of Iomega's 2.5-inch portable hard drives are host powered, requiring no external power supply beyond the power provided through the USB bus on a personal computer, laptop or netbook.

ENGADGET: Iomega pushes ahead with USB 3.0 transition, promises to keep drives at USB 2.0 prices