Electronic versions use electricity and fossil fuels.

电子版本使用电能和化石燃料。

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Claiming to be the world's first of its kind, the technology works on the basis of the transmission of electricity using magnetic fields between the charger and the electronic device.

富士通公司称，该系统是世界上首个无线充电系统。这项技术利用充电系统和电子产品之间的磁场传输电能。

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Other electronic calculators had to be plugged into electricity.

而其他电子计算器必须插电。

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As Gittleman sees it, we are surrounded by electronic devices, electricity, transmission signals and wireless devices.

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Cold-ironing allows ships at dock to plug into shore-side electricity sources to power electronic and mechanical systems needed for loading and unloading activities.

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Just last month Altra launched an electricity-trading site, hoping to grab a share of an electronic market now dominated by the Powermatch exchange operated by Bloomberg Financial Markets.

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