austenite grain size

例句：

1. 1. The steelis made from austenitic iron and has a fine grain size.
   这种钢材是由奥氏体铁制成的，具有细晶粒尺寸。
2. 2. The engineer measured the grain size of the material to ensure it meets the standards.
   工程师测量了材料的晶粒尺寸，以确保它符合标准。
3. 3.The researcher found that the austenitic grain size had a significant impact on the material's properties.
   研究人员发现奥氏体晶粒尺寸对材料的性质有显著影响。