短語詞組短語weld toe crack 焊趾裂紋weld solidification crack 焊縫凝固裂紋weld corrosion crack 焊縫破裂weld ream crack 焊縫裂紋weld arer crack 焊縫區(qū)裂紋inside weld tiny crack 內(nèi)焊縫微裂紋weld hot crack 焊縫熱裂紋weld cold crack 焊接冷裂紋 返回 weld crack