wave offv.挥手(告别)waven.波浪；波纹；波v.挥动；飘动wave speed materials波速资料wave velocity method弹性波法waves light coherent相干光波waveguide simulation波导模拟wavelet de-noising小波去噪waveguide transition波导过渡,波导管过渡wave energy spectrum波能谱waveguide attenuator波导衰减器wave-front fitting波面拟合waveguide experiment波导实验