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Rubber | Tropical Plants, Petroleum, & Natural Gas | Britannica
rubber, elastic substance obtained from the exudations of certain tropical plants (natural rubber) or derived from petroleum and natural gas (synthetic rubber). Because of its elasticity, …
Rubber: A simple introduction - Explain that Stuff
2022年6月5日 · T hink of rubber and you probably think of elastic bands, car tires, or pencil erasers. But this super-stretchy material actually finds its way into tens of thousands of …
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