ML T−2\mathrm{ML}^{} \mathrm{~T}^{-2}ML T−2
ML2 T−1\mathrm{ML}^{2} \mathrm{~T}^{-1}ML2 T−1
ML2T−2\mathrm{M}^{} \mathrm{L^{2}T}^{-2}ML2T−2
ML2 T−3\mathrm{ML}^{2} \mathrm{~T}^{-3}ML2 T−3