单词	凹陷焊缝
释义	同凹陷焊缝 -- 火山口
随便看	multi-layered nickel plating multilayered photoetched circuit board multilayered schema multilayered sheath multilayered sheath, multilayered jacket multilayered stochastic language multi-layered structure multi-layered system multilayered system multi-layer extrusion multilayer fabric multi-layer field winding multilayer film multilayer filter multi-layer glass multilayer grid file multi-layer headbox multi-layer inductor multilayer injection molding multilayer insulation multilayer interconnection multilayer interconnection structure multilayer interference filter multilayer logic multilayer material