The method has considered the effect of difference in material hardness on the fatigue limit, which causes the shaft diameter design to become different depending on heat treatmentdifference.
该方法考虑了材料硬度对疲劳极限的影响，使半轴杆径设计随热处理方法不同而有所差异。
2
There's never been definitive proof that treatment with very bright lights makes a difference.
从来没有明确的证据表明，使用非常明亮的灯光进行治疗会有所不同。
3
It is particularly important that all births are attended by skilled health professionals, as timely management and treatment can make the difference between life and death.