| 单词 | polyolefin |
| 释义 | polyolefin /pol'ee oh"leuh fin/, n. Chem. any of a group of thermoplastic, stiff, light, and hard polymers obtained from the polymerization of simple olefins like propylene, used for injection molding, mostly in the automotive and appliance industries. [POLY- + OLEFIN] |
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