“natural radiation source”的概念、定义、翻译、参考文献-科学参考

单词	natural radiation source
释义	natural radiation source Encyclopedia 工学红外辐射源释 natural radiation source自然辐射源自然辐射源泛指自然形成的辐射源，包括地物、大气以及地球外物质等，其中地物是地球表面所有自然资源、自然材料以及人工建造物的总称。
随便看	UMALE umami Umar II's reform of taxation system Umar Junus Umar Kayam Umaswati Uma Thurman Umayyad Dynasty UMa Ⅰ UMa Ⅱ umbel umbelliferone umbellule umber Umberto Barbaro Umberto D. Umberto Eco Umberto Giordano umbilial hernia umbilic umbilical umbilical abscess umbilical cable umbilical cord umbilical cord blood

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。