G2TT
Fighting asbestos contamination in The Gambia  智库博客
时间:2018-12-21   作者: [unavailable]  来源:United Nations Environment Programme (Kenya)
Discovered about 4,000 years ago, asbestos became widely used by the end of the 19th century in buildings and machinery as an insulation material. Its affordability and useful physical properties, such as sound insulation…

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