The 160-metre falls mark the dramatic confluence of the rivers Nera and Velino.内拉河和韦利诺河的汇合处是落差达160米的瀑布，景象十分壮观。a confluence of artistry, superb choreography, and stage design.艺术技巧、优美的舞蹈和舞台设计的融合They built the city at the c...
实验结果表明,磨屑热辐射流温度信号是较好的辨识砂轮磨钝的信号源.The experiment results show that the temperature of grinding chips thermal flow is useful signal source.介绍了井口磨屑分析法和工具接头磨损检测法的理论依据.The theory basis of abrasive powder analysis method and to...