∼10−9 m\sim 10^{-9} \mathrm{~m}∼10−9 m
1−100 nm1-100 \mathrm{~nm}1−100 nm
0.59×10−8 cm0.59 \times 10^{-8} \mathrm{~cm}0.59×10−8 cm
0. lÅ
