本部分借助剖面金相法针对几种钢进行了启裂韧度的研究。
This paper research the initiation toughness of several kinds of steels using cutting section metallographic method.
在内燃机动力分析的基础上，运用有限单元法，通过对曲轴应力分析，确定了裂纹启裂部位和扩展方向；
A stress analysis of a diesel engine crankshaft is made by FEM based on dynamics analysis to determine the position of the initial crack and its propagation direction.
主神说，我是阿拉法，我是俄梅戛（阿拉法俄梅戛乃希腊字母首末二字），是昔在今在以后永在的全能者。（启。
"I am the Alpha and the Omega, " says the Lord God, "who is, and who was, and who is to come, the Almighty. "
主神说，我是阿拉法，我是俄梅戛（阿拉法俄梅戛乃希腊字母首末二字），是昔在今在以后永在的全能者。（启。
"I am the Alpha and the Omega, " says the Lord God, "who is, and who was, and who is to come, the Almighty. "
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