内基体 meaning in Chinese

endobase
endocarpon

The particles distributed hi the matrix of grey cast iron , but some contact each other . the composite layer extend gradually into the substrate . when volume fraction of wc is 36 wt % and 27 wt % , the matrix of the composite is high chromium cast iron , consist of white carbide bars and the austenite . wc particles distributed uniformly , retaining approximately quondam granular form in the composite layer which has an evident interface area with the substrate , with good bonding strength
对不同碳化钨体积分数的灰铁和低铬铸铁基复合材料的微观组织结构分析表明：碳化钨体积分数为52时，复合层内基体为灰口铸铁组织，颗粒直接分布在灰铁基体上，部分碳化钨颗粒有相互接触的现象，基材与复合层之间没有明显的过渡；碳化钨体积分数为36 、 27时，复合层内基体为高铬铸铁，由面块状的奥氏体和白条状碳化物组成，碳化钨颗粒表面固溶于基体组织中，粒形基本保持完整，分布均匀，与基体构成冶金结合，基材与复合层之间存在一个明显的平缓过渡区。