This article introduces radio frequency automatic object identification technology and elaborates its application on highway and railway traffic system.

介绍了射频自动目标识别技术，阐述了该技术在公路和铁路交通中的应用。

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It shows that frequency conversion technology is in good foreground on energy saving and improving the level of automatic control.

实例证明，该变频技术在节能降耗、提高自动化控制水平方面具有很好的应用前景。

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We do research in automatic detection technique of liquid impurity on the basis of video frequency. It has significance in theory and has broad application future in industry production field.

论文开展基于视频液体中杂质的自动检测技术研究，具有重要的理论意义，在工业生产中等领域具有广阔的应用前景。

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