| ppm |
Printer manufacturers describe the performance of their wares in pages per minute, or ppm for short.
출처: www.vnunet.com/features/1146647
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| ppm |
Parts per million, or milligrams per liter (mg/L). Imagine a room 10 feet wide, 10 feet long, and 10 feet high could hold about one million ice cubes. If one of those ice cubes were blue, it would represent one part per million. Espa?l
출처: www.cabq.gov/waterquality/resources/definitions.ht...
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| ppm |
One part per million corresponds to one minute in two years or a single penny in $10,000.
출처: www.astoria.or.us/water/definitions.html
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| ppm |
Pulses per minute.
출처: www.sirtrack.com/glossary.asp
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| ppm |
Parts per millions is a messurement of pollutant concentration.
출처: www.ias.unu.edu/ecology/monitoring/terms.htm
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