短语词组短語acicular tempered martensite 針狀廻火馬氏躰coarse acicular martensite 粗針狀馬氏躰twinned acicular martensite 孿晶針狀馬氏躰martensite acicular bundle 馬氏躰板條束martensite acicular bundle diameter 馬氏躰板條束逕 返回 acicular martensite