波纹圆波导
Corrugated circular waveguide
Corrugated circular guide
波纹圆形槽波导
Corrugated circular groove waveguide
矩形-圆形波导转换器
rectangular-circular waveguide transducer
椭圆不锈钢波纹管管束
oval stainless steel bellows tube bank
圆形波纹槽波导
Circular corrugated groove guides
无加强U形波纹管
unreinforced U-shaped bellows
储罐-波纹管-管道系统
tank bellow pipeline ( TBP ) system
变截面圆形管道
circular cross-section tube with constriction
波纹圆板
corrugated circular plate
波形圆板
corrugated circular plate