而原位松质骨块植入后的应力曲线几乎与正常应力曲线重合。
After the bone graft in situ, the stress curve was almost coincided with that of the intact femur.
这里的最优准则是指正常应力水平下产品对数平均寿命估计的方差的极小化。
The optimum test design is obtained to minimize variance of least square estimation of the mean life at a normal stress level.
认为，该曲轴材料的冶金缺陷是导致疲劳裂纹在正常工作应力下过早形成的原因。
The results show that metallurgical defect is the main reason leading to early formation of fatigue crack under normal working stress.
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