polyethylenes 📖 中文释义 (polyethylene 的复数) n. 聚乙烯[化] 聚乙烯 🔗 释义中的汉语词聚乙烯 🧩 词形变化 原形 polyethylene 📘 English Definition(英文释义) plural of polyethylenen. a lightweight thermoplastic; used especially in packaging and insulation ← polyethyleneimine polyethyltriethoxysilane →