Progress on pulse-to-pulse coherent beat note generated by two-frequency solid-state lasers

双频固体激光器产生相干脉冲输出的研究进展

The use of beams rather than individual flags is dictated by the beat with which note groups joined by a beam must conform .

使用连音线而不是单独的符尾取决于 节拍，一组 音符添加连音线要遵守该规则。