calcium and magnesium salts – normally with high ph) is used for irrigation. polyphosphate however, there is another form of phosphate, polyphosphate, that we can use to supply plant phosphorus. polyphosphates are molecules made from chains of joined phosphate groups and already exist within plant cells...
calcium and magnesium salts – normally with high ph) is used for irrigation. polyphosphate however, there is another form of phosphate, polyphosphate, that we can use to supply plant phosphorus. polyphosphates are molecules made from chains of joined phosphate groups and already exist within plant cells...
recovery ventilators (ervs). - hrvs and ervs are available for commercial and industrial applications as well as for residential and small-scale commercial uses. a. energy recovery wheels b. cross flow heat exchanger c. heat pipe coils this device proposes a rotating surface composed of small aluminum cells...
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as will be seen, there are stark declines continuing in the diamond, gold, nickel and, particularly, deep-level platinum sectors, where sectoral maturity in the face of above-inflation cost increases and unimpressive commodity prices compound the situation. at the same time, sales for iron ore, manganese...
material and it is the best thermal conductor. moreover, it is the thinnest known material, as well as the strongest and most flexible. single layer graphene is nearly transparent and gases and liquids cannot permeate through, indicating its great inertness and chemical stability. perovskite solar cells...
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fine art materials fuel cells glass investment grade metals jewelry & fashion lasers lighting medical devices musem & galleries nuclear energy oil & gas optics paper & pulp pharmaceuticals & cosmetics research & laboratory solar energy space sports equipment steel & alloy producers textiles & fabrics...
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