“到期日”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	到期日
释义	请查阅到期--到期日
随便看	optical centre optical centring optical centring device optical ceramic optical channel optical character reader optical character reader optical character reader optical character reader optical character reader (OCR) optical character reader（OCR） optical character recognition optical character recognition optical character recognition (OCR) optical character recognition (OCR) optical character recognition (OCR) optical character recognition--optical character recognition (OCR) optical chopper optical circulator optical circulator optical-coated abrasive optical code optical collector optical communication optical communication