This dissertation research on the feather extracting algorithm of the technologies of identity recognition based on multi-biometrics which is face recognition combined with fingerprint recognition.
本文对多种生物特征综合识别系统的特征提取算法进行研究，即人脸和指纹综合识别系统。
2
Underground mining machines - Mobile extracting machines at the face - Safety requirements for shearer loaders and plough systems.
地下采矿机械。工作面上的移动式采掘机械。截装机和开沟系统的安全性要求。
3
The methods of face rough extracting, edging detecting and section connectivity filtering are presented to extract facial curvilinear lineament.