Applied BP neural network to recognize Numbers, and adopted a method of wipe off miscellaneous points to take out noise, and used a method of per pix feature extraction to extract feature vector.
应用BP神经网络对数字进行识别，其图像的预处理采用去除杂点方法去除噪声，使用逐像素特征提取方法进行特征向量的提取。
Point out place of Daton colliery go off the reasons of calamity more in recent years, propose and control measure and method who fire take place.
指出大同地方煤矿近年多起火灾原因，并提出遏制火灾发生的措施和方法。
To handle the true 3D nature of the wavefield, including the wide azimuths and large take-off angles of the ghosts, a 3D deghosting method was developed.
为了处理波场的真实3D特性（其中包括宽方位角和重影入射角），发明了三维虚反射剔除方法。
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