短語詞組短語strip overlay welding experiment 板極堆焊試驗;翻譯strip overlay welding 帶極堆焊overlay welding layer 堆焊層upslope overlay welding 上坡焊submergen arc overlay welding 帶極埋弧堆焊hard alloy overlay welding 硬質(zhì)合金堆焊E347L overlay welding layer E347L 堆焊層downslope overlay welding 下坡焊e l overlay welding layer e347l 堆焊層 返回 overlay welding