“radiation era”的概念、定义、翻译、参考文献-科学参考

单词	radiation era
释义	radiation era [´rād·ē`ā·shǝn ´ir·ǝ] ^ASTRONOMY The period in the early universe, lasting from roughly 20 seconds to 10⁵ years after the big bang, when photons dominated the universe.
随便看	settling settling basin settling chamber settling pond settling reservoir settling rounds settling tank settling time settling velocity setup setup person setup time seven-eighths rule seven-tenths rule seven-thirds rule seventy-five-degree line severe combined immunodeficiency severe storm severe-storm observation severe weather severity factor Sevier orogeny sewage sewage disposal plant sewage farm

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。