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
超低噪声微波低温电子学系统
ultralow noise microwave cryoelectronic system
导向剂超声波低温合成
crystallization directing agent at low temperature and ultrasonic method