“period”概念、定义、翻译-科学时代

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。

单词	period
释义	天文学词汇手册 period 周期
随便看	defined benefit defined benefit defined benefit (DB) defined benefit--defined benefit (DB) defined benefit pension plan defined benefit pension plan defined-benefit pension plan defined-benefit pension plan defined benefit plan defined benefit plan defined-benefit plan defined connective defined contribution defined contribution defined contribution defined contribution (DC) defined contribution--defined contribution (DC) defined contribution health plan defined contribution pension plan defined-contribution pension plan defined contribution plan defined contribution plan defined contribution plan defined contribution plan defined-contribution plan