low permeability and extremely low permeability oilfield
~(15)N isotopic pool dilution
~(233)U isotopic target
~(35)S-isotopic exchange
~(39)Ar~-~(40)Ar isotopic age
15N isotopic pool dilution
2 - D Transversely Isotropic Media
2π-isotropic Irradiation
3-D isotropic harmonic oscillator
3D transversely isotropic medium
40Ar-39Ar isotopic age
~(40)Ar/~(39)Ar同位素年龄
40Ar-39Ar同位素年龄
absolute isotopic abundance
absolute isotopic abundance of samarium
acidolysis hydrocarbon isotopic compositions