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Gas-purifying installations

Gas-purifying installations – the technical devices intended for allocation harmful to the person (or being of value for the national economy) impurity from production wastes or gaseous products for reduction of their emissions in the environment.

 
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Scientists from the Oxford university conducted a number of researches during which they came to a conclusion that vegetarianism can be harmful to a human brain as leads to decrease in its weight. Therefore scientists recommend not to exclude completely from the diet fish and meat.