four-beam相关论文
As one of the main failure modes, embedded cracks occur in beam structures due to periodic loads. Hence it is useful to ......
针对传统剪切光束成像技术的准实时性问题,提出用口字形排布的四束光代替传统L形三束剪切光照射目标,研究了四光束剪切相干成像目标......