The traditional process step of maching shaftmaterial cannot conform to the technical requirements, because of the higher precision required by distributor shaft.
分电器轴的加工精度要求较高，传统的轴下料加工工序不能满足其工艺要求。
2
It also analyses the influence of attenuation of stress wave cased by the soil resistance and the damp of pile shaftmaterial in dynamic pile test on the precision of pile shaft integrity test.
分析了动力试桩中，因土阻力和桩身材料阻尼引起的应力波衰减作用对桩身的完整性检测精度的影响。
3
To lose control of the valve material, valve shaft from stainless steel ANSI420.