| aluminum |
An alloy that carries the atomic number of 13 and an atomic weight of 26.98; as a dream symbol, aluminum represents both feasibility and flexibility in one. Born out of the old with an entirely new, individual and unique nature, aluminum has an unusual strength while still appearing to be frail.
출처: www.katiestanley.com/resources/dd/a.htm
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| aluminum |
A non-rusting metal used in roofing for metal roofing and the fabrication of gutter and flashings.
출처: www.roofhelp.com/glossary/
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| alum |
This is aluminum sulfate, used for "setting" internal rosin size, to impart water resistance to paper; the alum-rosin size system is " acid" sizing, and the alum is what imparts the acid character to the sheet of paper. Alum can also be used as a release agent on the paper machine to prevent wet webs from sticking to turning rolls or as a minor additive for alkaline sizing, imparting no pH change.
출처: www.newpagecorp.com/mpd/home.nsf/Glossary
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| aluminum |
is abundant in rocks and clays, and it can be mobilized from soils by natural weathering. Sources also include effluents from industries that use aluminum in their processing or use alum as a flocculent. Low concentrations are not a concern, but toxicity of aluminum increases if the pH of the water is less than 6.
출처: www3.gov.ab.ca/env/water/SWQ/faqs04.cfm
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| alumina |
The native form of aluminum oxide occurring as corundum or in hydrated forms as a powder or crystalline substance.
출처: www.aquatechnologies.com/info_glossary.htm
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