| vacuum v. |
ventilation of a room or building by the forced extraction of air.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
|---|---|
| vacuum |
Melting in a vacuum to remove gaseous contaminants from the metal.
출처: www.domcastmetals.com/ironcasting22.html
|
| vacuum |
Negative pressure commonly expressed in inches of mercury ("Hg), millimeters of mercury (mmHg) which is equal to torr. One atmosphere equals 14.7 psia (0 psig), 29.92"Hg (0"Hg absolute), 760mm Hg, 760 torr or 1,013 mbar.
출처: www.aaronprocess.com/glossary.asp
|
| vacuum |
A device that uses suction to collect dirt from the bottom and sides of a pool. Most common is a vacuum head with wheels that attaches to a pole and is connected to the suction line. Some automatic pool cleaners fall into this category.
출처: www.havuz.org/glossary/pool-u-z.htm
|
| vacuum |
syn negative pressure.
출처: www.fluidedesign.com/pump_glossary.htm
|