脱だっ炭たんだったんMeanings1noundecarburizationTechnical term in metallurgy for removing carbon from the surface of steel or iron, often during heating.鋼はがねの脱だっ炭たんは高こう温おん加か熱ねつで起おこりやすい。Decarburization of steel is likely to occur during high-temperature heating.
