A.消除應力; B.消除加工硬化; C.細化晶粒; D.改善切削性能; E.提高強韌性;
A.水泥; B.耐火材料; C.碳化硅; D.日用陶瓷; E.玻璃;
A.35CrMo B.3Cr2W8V C.5CrNiMo D.50CrV E.Cr12MoV