An expert system of radar radiation-source recognizing based on knowledge library is proposed upon the analysis of the characteristics of radar radiating-source recognizing.

从分析雷达辐射源识别的特点出发，提出了基于知识库的雷达辐射源识别专家系统。

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The primary source of the low frequency acoustics is the radiating noise produced by the vehicle structural vibration, which is induced by the vibrating of the engine and the suspension system.

低频噪声的来源主要是由发动机振动，悬架系统振动所引起的车身板件振动产生的辐射噪声。

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Every alive stone on the board works as an influence source, with influence of its color radiating outwards in all directions.

棋盘上每一个活棋子都像一个影响源般起作用，带着它的颜色的影响在所有方向辐射开去。

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