常見例句雙語例句A narrow-band composite filtering system is developed to acquire clear image of keyhole puddle in plasma arc welding of aluminum alloy.研制了一套窄帶復合濾光圖象傳感系統(tǒng)，從鋁合金等離子弧焊焊接工件正面檢測到部分小孔溶池的清晰圖象。The problems such as fissure of displacement, slit nonuniform and weld puddle flowing etc at the case of assembling and welding on orbital slit of pressure vessel are analyzed.分析了在壓力容器環(huán)縫組對及焊接中存在的錯邊、間隙不均勻以及焊接中熔池流動等問題。 返回 puddle welding