“ultra-high-purity helium atmosphere”概念、定义、翻译-科学时代

单词	ultra-high-purity helium atmosphere
释义	动力与电气工程词汇手册 ultra-high-purity helium atmosphere 超高纯度氦气氛（层）
随便看	trade agreement trade agreement trade agreement trade agreement Trade Agreement Act trade and development board Trade and Development Board (TDB) trade and development board (TDB) trade and development board--trade and development board (TDB) trade and payment agreement trade and payment agreement trade and payment liberalization trade area trade asset trade assets trade association trade association trade association trade association trade association trade association trade association trade association activity trade balance trade balance

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。