| natural ventilation |
The movement of air into and out of a space through intentionally provided openings, such as windows and doors, or through nonpowered ventilators or by infiltration.
출처: www.iaqinfo.com/pages/iton.html
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|---|---|
| natural selection |
Theory proposed by Charles Darwin which states that certain physical traits are selected for because of their advantage in a certain environments.
출처: www.mnsu.edu/emuseum/biology/humanevolution/terms....
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| natural |
"Nature" comes from Latin, from the word for "born", which also gives us "natal", "navel", "native", and "nativity". This is a buzzword in today's advertising, implying something good. Just remember that floods, tornadoes, and E-coli are all natural. Playing a symphony on a piano, cell phones, and vacines are all man-made.
출처: www.muellercenter.rpi.edu/Glossary.asp
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| natural |
These blemishes can be found on some polished diamonds when some of the rough is left on the diamond. This is often done so the cutter can maximize weight in a diamond.
출처: diamonds.pricescope.com/glossary.asp
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| natural |
Part of the rough Diamond remaining on the Diamond, having survived the cutting process. This is usually the sign of a good cutter attempting to maximize the weight retention of the rough Diamond.
출처: www.diamondhouse.be/glossary.html
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