“public service announcement（PSA）”概念、定义、翻译-科学时代

单词	public service announcement（PSA）
释义	新闻与传播词汇手册 public service announcement（PSA）〈美〉公益服务特别通告
随便看	gas leak quantity gas leak rate gas leak valve gaslight gas liquid chromatography gas-liquid chromatography gas-liquid chromatography gas-liquid chromatography--gas-liquid chromatography（GLC） gas-liquid chromatography (GC) gas-liquid chromatography（GLC） gas-liquid continuity gas-liquid equilibrium gas-liquid exchanger gas-liquid flow gas-liquid inclusion gas-liquid ratio gas-liquid reaction gas-liquid reactor gas liquids gas lubricated gyroscope gas lubrication gas magnification gas magnification gas main gas main

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。