High frequency Electronic Technology experiment book, very good high-frequency experimental data, can be used as high-frequency reference.

高频电子技术实验书，非常好的高频实验资料，可作为高频的参考资料。

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In the field of electronic technology, the frequency is basic parameter, frequency of Detection and many of the measurement of electrical parameters have a very close relationship.

在电子技术领域内，频率是一个最基本的参数，频率的检测与许多电气参数的测量都有着十分密切的关系。

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Organizers also use Radio Frequency identification (RFID), a technology that USES electronic identification tags, to track food through its entire supply chain.

组织者还使用利用电子标签进行射频识别的技术在食品供应链中对食品进行全程追踪。

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But exchanges are technology companies now, catering to electronic traders and high-frequency trading firms, and competing with dozens of electronic markets and dark pools.

FORBES: Plugging in a Global Exchange