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мм вод. ст. (millimeter of water gauge (mm WG) another common name for the millimeter of water column. The word "gauge" (or 'gage') after a pressure reading indicates that the pressure stated is actually the difference between the absolute, or total, pressure and the air pressure at the time of the reading. Found on  unc.edu Alexander Demidov) | |||
| mm WG: 1 phrase in 1 subject |
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