不疲劳

Microstructure analysis showed significantly consistent change in nodule counts and possibly the numbers of microshrinkage pores present from the bottom to the top of heavy-section casting.

在厚断面 铸件取样位置不同时，由于浇铸凝固时间不同，疲劳强度也不同。

Also some liquid crystal displays depend on, demonstrated body itself which the modulation outside light realizes nonluminous, does not stimulate the eye, is not easy to be weary and so on the merit.

还有液晶外界光实现的，本身不发光，不刺激眼睛，不易疲劳等优点。