“历元”概念、定义、翻译-科学时代

单词	历元
释义	请查阅世--历元--纪元--恒定相位延迟
随便看	tailstock tail stream tail streamer tail trimmer tail tube tail unit tail valve tail-warning radar tail-warning set tailwater tail water tailwater tailwater depth tailwater elevation tailwater gallery tailwater level tailwater rating curve tailwater recovery tail wheel tail wheel landing gear tail whorl tail wind tail σ-field Tai-mitsu taimyrite

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。