例文
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- The oxygen isotope ratios in their shells are used as proxies for temperature.
- The liquid-vapor equilibrium fractionations for hydrogen and oxygen isotopes are temperature-dependent:
- oxygen isotope stage 11 ( 420 to 360 kya ).
- He also collaborated with Harold Urey on separating oxygen isotopes.
- Fossil oxygen isotopes, which can reveal an organism's body temperature, should be particularly informative.