Combined with perceptual audio coding technology, digital audio water-marking technology embeds watermark data into audio signals.

数字音频水印技术和感知音频编码技术相结合，在音频信号中嵌入水印数据。

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Much of the research data on visual search and sports performance has demonstrated close links between visual efficiency, perceptual skill and proficiency in sports.

关于视觉搜寻和运动绩效的关系研究，现在已经证实运动中的视觉搜寻效率、知觉技能和熟练性之间密切相关。

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Many scholars have made researches of assaulting police phenomenon according to data or from macroscopic perspective but still on the level of perceptual knowledge.

这已引起学术界的关注，不少学者从袭警现象的数据方面或从宏观的角度来研究这一问题。

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