Nano materials and microstructures of materials at nano scales are two key regions on the study of material science. 纳米材料及材料的纳米尺度微观结构研究是材料科学的两个重要领域。
The effect of such a difference can be neglected for large scale solids, but is quite significant for small solids with nano-scale dimensions. 这种差异的影响对于大尺寸固体的变形可以忽略，而对于纳米尺度的小尺寸固体则相当显著。
