1. Pressure had dropped to 29.5, one thousand millibars.

2. The final pressure reduction is to about 50 millibars to supply the local network, which then takes gas to individual properties.

3. Consequently, for every 10 millibars more they fly about 80 metres higher.

4. Earth has only 0. 3 millibars of carbon dioxide and Mars an average of about 6 millibars.

5. I have heard that swallows follow their insect prey and these feel happiest at a barometric pressure of about 1010 millibars.

6. For cylinders equipped with residual (positive) pressure valves, one evacuation under vacuum at 150 millibar is sufficient if the pressure is positive.