“half-period”概念、定义、翻译-科学时代

单词	half-period
释义	动力与电气工程词汇手册 half-period 半周期，半衰期
随便看	Patent and Trademark Office patent application patent application patent application specification patent assignee patent bibliometrics patent bulletin patent certificate patent citation index patent claim Patent Commissioner patent cooperation treaty Patent Cooperation Treaty Patent Cooperation Treaty--Patent Cooperation Treaty (PCT) Patent Cooperation Treaty (PCT) Patent Cooperation Treaty（PCT） Patent Corporation Treaty (PCT) patent country code patent credentials patent database patent date patent defect patent description patent digest patent documentation

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。