Such velocities would occur if gas moved on elliptical streamlines.

Through spectral analysis, he discovered that the gas at their cores was very hot and moving amazingly fast.

A little sucking sound came out of the Mayor as gas or blood moved.

They allow respiratory gases to move in and out of the pupa.

This allows gases to diffuse, or move across, the surface of the alveolus.

As a result the gas also moves from left to right and back while the pressure within the system increases and decreases.

The gas and debris moved outward at enormous speeds, creating the wave that hit us.

The basic idea is that the membrane is built in such a way that gas can move through it, but water cannot.

The hot gases move fast as they leave the back of the rocket.

Due to an unintended glitch, infantry units use gas instead of food to move.