PH

measure of the acidity

the pH of a quantity of logarithmic that the amount of acidic or play of material, and does not specify. More aquatic
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PVC

Poly Vinyl Chloride

Polyvinyl chloride (PVC) is PVC, and vinyl are common not only with the reference polymer, but also for all substances
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CBR

California bearing ratio

Testing CBR or signs bearing ك in order to determine the cargo capacity ك, polyimide is used. The value of this
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AC

Alternating Current

Alternating current, some sort of flow is that it is constantly the amount and its direction relative to the current is
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SE

Selenium

Selenium is one of the elements, chemicals, non-metallic and rare. Atomic number it 34 and symptoms abbreviation, it
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GRB

Gamma Ray Burst

Gamma ray bursts or eruptions of gamma-ray, or GRB to the eruption of sudden and intense gamma-radiation in the depths
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