波形圆板
corrugated circular plate
带调整螺钉的可调式圆板牙
adjustable round split die with adjusting screw
夹层椭圆形板
elliptical sandwich plate
矩形-圆形波导转换器
rectangular-circular waveguide transducer
平行圆板形电离箱
parallel circular plate ionization chamber
压电层合圆板
piezoelectric laminated circular plates
圆柱管螺纹圆板牙
round die for straight pipe threading
组合圆形活塞声源
built-up circular piston sound source