surface imperfection

• 表面缺陷,表面不规则

surface imperfection的用法和样例：

例句

1. Some surface defects in the EOM of the compresser blades made of titanium alloys are also discussed.
   初步讨论了钛合金压气机叶片在电解加工中出现的一些表面缺陷问题。
2. With the augmentation of grain size, surface defects of the manganese zinc ferrite nanocrystallines minish, and intergranular free volume combines.
   随着粒径的增大，纳米晶的表面缺陷减小，晶界间的自由体积发生复合。