-speed optical
美 [ˈɑptɪk(ə)l]英 [ˈɒptɪk(ə)l]
- adj.视力的;视觉的;光学的;有助于视力的
- 网络光纤;眼的;光的

-speed optical
1.视力的;视觉的;光学的connected with the sense of sight or the relationship between light and sight
2.有助于视力的;光学的used to help you see sth more clearly
3.光读取的;光存储的using light for reading or storing information
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