基体硬度 meaning in Chinese

matrix hardness

The influence factors are crack size , matrix hardness , carbon fiber surface defect and carbon fiber modulus
其影响因素主要为基体裂纹大小、基体硬度、碳纤维表面缺陷、碳纤维模量等。
The results show that pso pyrolysis matrix has low hardness and good extensibility which can relax stress concentration in matrix and interface , and damages carbon fibers slightly . however , psz derived matrix damages carbon fibers largely in physical and chemical ways
结果表明， pso裂解后生成的基体硬度较小且延伸性好，可以缓解基体及界面的应力集中，碳纤维强度保留率较高； psz裂解过程中除了体积收缩对碳纤维带来物理损伤外，还与碳纤维发生严重的化学反应，使碳纤维强度大幅下降。