I was utterly intimidated by the practical electronics that formed part of my final undergraduate physics course at London University, and I enquired as to possible alternatives.

当时在伦敦大学读本科，最后一次的物理课，其中一部分是关于实用电子学，我完全被它吓住了，于是我立刻开始询问关于转方向的事。

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However, in recent years wireless sensors have become practical, thanks to the miniaturization of electronics and improvements in battery and radio technology.

然而，近几年多亏迷型电子及电池和录音机技术的提高让无线传感器变得实用。

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The main direction of the company is innovative, practical and aesthetically pleasing consumer electronics products.

本公司主攻方向是新颖、实用、美观的消费类电子产品。

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To make this technology practical, automakers had to wait for ultra-powerful but compact electronics and, critically, useful batteries.

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