波纹波导辐射器
Ripple-wall waveguide launcher
三折螺旋波纹波导
Three-fold helical rippled waveguide
双板波纹波导
dual-plate rippled-wall waveguide
同轴波纹波导
Coaxial corrugated waveguide
dispersion relation
弯曲波纹波导
curved corrugated waveguides
curved corrugated waveguide
3-D声波波动方程
3-D acoustic wave equation
BH型板波纹填料
high efficiency BH Mellapak packing
DHBSK型横向波纹补偿器
DHBSK horizontal corrugated type compensation
PVC双壁波纹管
double partition PVC wave veins plastic pipe
P波和S波波场分离
p- and s-waves field separation