| 单词 | fr4 | |||
| 释义 | FR4FR4(Flame Retardant 4) A widely used insulating material for making printed circuit boards. It is constructed of woven glass fibers (fiberglass) that are epoxied together.FR4
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英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。