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词汇 unsaturated polyester
释义 unsaturated polyester短语¹⁴⁴⁹⁷²⁺²
基本例句
不饱和聚酯
The roughening process ofunsaturated polyesterresins and its technological criterion were described.介绍了不饱和聚酯树脂的粗化工艺流程及各工艺规范。
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