1、The metal needs to be decarburized before it can be used for certain applications in the aerospace industry.
在航空航天工业中，金属在特定的应用之前需要脱碳。
2、The process of decarburizing steel involves heating it in a low-oxygen environment to remove the excess carbon.
钢材脱碳的过程涉及将其在低氧环境中加热以去除多余的碳。