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

单词	natural radiation
释义	natural radiation [`nach·rǝl ´rād·ē`ā·shǝn] See <<background radiation>>
随便看	coal-in-oil suspension coal liquefaction Coal Measures coal mining coal oil coal paleobotany coal pebbles coal petrology coal planer coal plough coal rake Coalsack coal seam coal-sensing probe coal sizes coal split coal tar coal-tar dye coal-tar enamel coal-tar epoxy coal-tar light oil coal-tar pitch co-altitude coaming coancestry

科学参考收录了103327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。