针对拼接主镜,开展子镜面共相校正装置的结构设计与性能测试。该装置整体采用粗调精调结合的两级式结构,主要由粗调级、精调级和横......

Increasing railway traffic and energy utilization issues prompt electrified railway systems to be more economical,effici......

Co-phase power supply system can solve the problems of power quality of heavy unbalanced three phase, large harmonics an......