The porosity defect is the important influencing factor to the quality of metal, and the non-touch inspecting method based image processing is an effective way.

针孔缺陷是影响金属箔材质量的重要因素，而基于图像处理的非接触性检测方法是检测针孔的一种有效途径。

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Knowledge service with high quality should be supported by an effective knowledge management, in which the most active factor is the knowledge service staff.

高质量的知识服务必须以有效的知识管理作为保障，其中知识工作者是最活跃的因素。

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Increasing power factor of traction substation is the effective measure to improve power quality of electrified railway for better voltage quality and less loss.

提高牵引变电所(简称牵引变)功率因数以改善系统电压质量、减少系统损耗是改善电气化铁路电能质量的有效措施。

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