简答题 翻译：Gas and oil, either as separate fluids or in mixtures, change their state or phase as reservoir pressure changes.

翻译：Plant organisms are far more abundant than animals, ...

问答题翻译：Plant organisms are far more abundant than animals, and the latter are directly or indirectly when carnivorous, dependent on the former.

翻译：Viscosity μ is the measure of fluids internal resist...

问答题翻译：Viscosity μ is the measure of fluids internal resistance to flow. It has a dimension of force time Ft per unit area L.

翻译：In the laboratory measurement of porosity, it is nec...

问答题翻译：In the laboratory measurement of porosity, it is necessary to determine only two of the three basic paramenters.