The replacement materials are secret.
该替代材料是商业秘密。
Therefore pure titanium and titanium alloys are the optimum replacement materials for the surgical implants.
所以生物医用植入钛及钛合金已成为外科植入件优选的替代材料。
Iron carbide is one of replacement materials of high quality scrap. Some problems of EAF steelmaking using iron carbide have been discussed.
碳化铁作为一种优质废钢的替代物已开始应用于电弧炉炼钢。文中对在电炉中用碳化铁炼钢的有关问题试分析讨论。
Iron carbide is one of replacement materials of high quality scrap. Some problems of EAF steelmaking using iron carbide have been discussed.
碳化铁作为一种优质废钢的替代物已开始应用于电弧炉炼钢。文中对在电炉中用碳化铁炼钢的有关问题试分析讨论。
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