Another may have been the possibility that the animal was buried in a virtually oxygen-free environment very soon after death.
This copper is finished to a final form in a carefully regulated, oxygen-free environment.
Heating tung oil to about 500 degrees in an oxygen-free environment will substantially increase the viscosity and film-forming quality of the product.
The only life that remained was either resistant to the oxidizing and poisonous effects of oxygen, or spent its life-cycle in an oxygen-free environment.
They are the first multicellular organisms known to spend their entire lives in an oxygen-free environment.
The Institute also designed and built the elaborate display case system that now houses the artifact in a continuously monitored, stabilized, oxygen-free environment.
Smothering the garlic with oil provides an oxygen-free environment that encourages the spores to grow.
In this oxygen-free environment, a kind of slow cooking process took place.
The mystery involved the worm called ascaris, which has enormous hemoglobin molecules but thrives in an oxygen-free environment.
Once the can is sealed, it creates an oxygen-free environment.