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1.A rubbery substance derived from the latex of any of several tropical trees of the genera Palaquium and Payena, used as an electrical insulator, as a waterproofing compound, and in golf balls.
古塔胶从某些胶木属和巴耶榄属热带树的乳胶中提练出的橡胶物质，用作电绝缘体，防水复合物或做高尔夫球收藏指正
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