“聚晶”用英语怎么说

这是喷射式钻头,那是人造聚晶金钢石钻头.This is jet bit and that is a PDC bit.pdc钻头用聚晶金刚石 ( 复合片 ) 作为刀具.PDC bit uses polycrystalline diamond compacts ( PDC ) as cutters.提出一种人造聚晶金刚石镶套新工艺———六面顶高压镶套工艺.A new mounting technology for synthetic dia...