基本解释渗硼同根派生 boronzing相关词英汉例句Keywords steel-bonded carbide;WC particles;boronzing;microstructure;borides; 电渣熔铸钢结硬质合金;WC粒子;渗硼;显微组织结构;硼化物;boronzing treatment 渗硼处理boronzing更多例句