led v.引导；领先；带领（动词lead的过去式和过去分词）abbr.发光二极管(=lightemittingdiode)
双语例句
用作名词 (n.)
After treatment, uniform and fine carbonization of no ledeburite organization were obtained.Therefore, we refined the organization of stainless steel and improved its property. 本试验用离子渗碳的方法对其进行了改性，处理后获得了无共晶莱氏体组织的均匀细小的破化物，从而改善了组织，提高了性能。
