| ppm |
Pulse Position Modulation.
출처: www.csr.com/ptot.htm
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|---|---|
| ppm |
mg= milligram per liter: Is a unit of measurement of a substance in the water. For example, if you are talking about 8 ppm dissolved oxygen in a lake, that means in one million "drops" or parts of water there are 8 "drops" or parts of oxygen.
출처: www.mlci.org/students/Page.aspx
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| ppm |
parts per million - A measurement used for nutrients present in very small quantities.
출처: www.noble.org/Ag/FeedLib/Definitions.html
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| ppm |
parts per million or milligrams per litre (mg/l)
출처: www.pskf.ca/publications/glossary.html
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| ppm |
Another graphics file format.
출처: ledas-www.star.le.ac.uk/asca/asca_glossary.html
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