Dualeh杜阿莱dualadj.双重的；成双的n.双数dual-core SOC双核SOC平台dual income tax二元所得税dual reed relay双笛簧继电器dual controller双控制器dual collimator双准直仪dual input type双路输入类型dual stochastic双重随机dual hypergraph对偶超图dual cantalever双层悬臂梁式Dual Empiricism二重经验论

1. In order to study the optical feedback characteristics at the dual frequency laser, a birefringent external cavity was studied throughboth theoretical analysis and experiments.
   摘要为了研究双频激光器的光回馈特性，采用双折射外腔光回馈的方法，进行了理论分析和实验验证，取得了双频激光器中条纹倍频现象的数据。