“hydrocarbon resins”的概念、定义、翻译、参考文献-科学参考

单词	hydrocarbon resins
释义	hydrocarbon resins [¦hī·drǝ`kär·bǝn `rez·ǝnz] ^{ORGANIC CHEMISTRY} Brittle or gummy materials prepared by the polymerization of several unsaturated constituents of coal tar, rosin, or petroleum; they are inexpensive and find uses in rubber and asphalt formulations and in coating and caulking compositions.
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