uneven grain的意思|示意

SEM experiment displays that the deposit has a (surface) morphology of granular structure with uneven grain sizes.

SEM实验表明，镀层表面形貌为团粒状，颗粒大小较不均匀。

The results show that high content of impurity elements, segregation along grain boundaries and uneven grain size are main reasons for the surface damage of domestic tung...

结果显示，杂质元素的含量偏高和沿晶界的偏析以及不均匀的钨晶粒是造成国产钨靶表面损伤的主要原因。

Small deformation in high temperature is easy to cause incomplete recrystallization and bulky and uneven grain. It is hard to eliminate them in subsequent rolling process.

高温小变形时容易发生不完全再结晶，造成晶粒粗大且不均匀，在随后的轧制过程中很难消除。