对H 13钢退火碳化物颗粒的平均直径、弥散度与硬度的关系的研究表明，在碳化物体积分数一定时，硬度是碳化物颗粒平均直径的函数，颗粒直径越大，退火硬度越低。
The relationship among the diameter and dispersity of the carbide and the hardness of the annealed H13 steel shows that when the volume of the carbide is constant, hardness is the.
对H 13钢退火碳化物颗粒的平均直径、弥散度与硬度的关系的研究表明，在碳化物体积分数一定时，硬度是碳化物颗粒平均直径的函数，颗粒直径越大，退火硬度越低。
The relationship among the diameter and dispersity of the carbide and the hardness of the annealed H13 steel shows that when the volume of the carbide is constant, hardness is the.
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