Thanks to Moore’s law (a doubling of capacity every 18 months or so), chips, sensors and radio devices have become so small and cheap that they can be embedded virtually anywhere.
多亏了摩尔定律（每隔18个月左右，[电子器件]容量就翻一番），芯片、传感器及无线电装置变得非常小且价格低廉，事实上可嵌入任何地方。
Launching a radio station is a cheaper way of increasing reach than launching a television channel, but it is still not cheap.
开办电台比电视台要便宜多了，但仍然花费不菲。
Radio Data System-Traffic Message Channel (RDS-TMC) is a large-scale and cheap traffic information dissemination technology to moderate traffic congestion and enhance traffic service.
基于广播数据系统的交通信息频道或称交通信息广播频道(RDS - TMC)，是一种广域、廉价的交通信息发布技术，是缓解交通拥堵，改善交通信息服务的有效途径之一。
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