Although a lot of valuable research results for increasing juvenile psychological health have beed accumulated, so far the research from the Angle of the primary cognition is still a gap.

青春期是各种心理问题或心理障碍的多发期，对于如何增进青少年的心理健康问题已积累了大量有价值的研究成果，但到目前为止，从元认知这一角度对此进行研究还是一项空白。

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The on-the-spot application showed that it is very effective for pulse ventilation in prevention and control of accumulated gas at the upper corner angle of coal face.

现场应用结果表明，射流脉冲通风对治理上隅角瓦斯积聚具有良好的效果。

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The paper gave a high resolution processing method based on double spectrum of seismic signal from Angle of higher order accumulated amount of signal.

本文从信号高阶累积量的角度出发给出了一种基于地震信号双谱的高分辨率处理方法。

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