Then intercept the ball back pad system and then pass the ball in the defensive and offensive systems with a high level of volleyball in the world do not exist significant differences.

拦回球系统和接传垫球系统中的防守和进攻与世界高水平男排均不存在显著性差异。

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The system allows metal tube, bar and wire to pass through the eddy current probe with variable high speed, and defects can be accurately located, marked and recorded.

该系统的特点是允许被测样品高速、变速通过涡流传感器，并能对缺陷进行准确定位、打标及记录。

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According to the system bandwidth, the low pass filter was added in controller to assure the tracking effect of system and filter the super-high frequency in control singles.

根据系统的带宽，在控制器中加入低通滤波器，以保证系统跟踪效果，过滤控制信号中频率过高部分。

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