The sticking steel is one common trouble of drilling equipment and an important cause effecting the high efficiency and high quality drilling of hydraulic drill.

卡杆现象是穿孔设备常见的故障之一，是影响液压凿岩钻机高效率、高质量穿孔的重要原因。

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In many kinds of artificial neural networks, BP neural nets is one of the most pioneer and common models, it is successfully applied to equipment fault diagnosis.

在若干神经网络模型中，BP网络模型是人们认识最早、应用最广泛的一种，它也是在设备故障诊断领域应用最成功的一种神经网络模型。

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In the field of police equipment, and sometimes need radio and receiver systems to be able to provide real-time live images and sounds, automotive wireless system is one of the common system.

在警用设备领域中，有时需要能够实时地提供现场图像和声音的无线发射与接收系统，车载无线系统就是常见的系统之一。

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