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Energy & Environment

Energy is the material which supplied energy transform to nature; it is material base of human activity. Environment means the temperature, ecosystem, surroundings and so on. The catalogue includes solar energy and recycling energy, water treatment, petroleum and products, waste management and other secondary catalogues.

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Water Treatment Purification of water to make it suitable for drinking or for any other use.
Charcoal A drawing pencil or crayon made from this material.
Activated Carbon Powdered or granular carbon used for purifying by adsorption; given orally (as a slurry) it is an antidote for some kinds of poisons.
Solar Power System The conversion of the energy of the sun's radiation to useful work.
Voltage Regulator A device that maintains the terminal voltage of a generator or other voltage source within required limits despite variations in input voltage or load. Also known as automatic voltage regulator; voltage stabilizer.

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