载明日期 meaning in Chinese

bear date

If no such date is shown in the letter , it shall accrue from the postmark date on the envelope
信件未载明日期的，自投寄该信件的邮戳日期开始计算。
Date for return is the date by which the picture must be returned as specified on the loan form . if no date is specified , the date for return shall be two weeks from the date of the loan form
归还日期指借用表格上载明必须归还图片的日期，如无载明日期，则应为借用表格日期起计两星期之日
This power shall be in full force and effect on the date below written and shall remain in full force and effect until ( 5 ) or unless specifically extended or rescinded earlier by either party
本权利在以下载明日期全权生效并一直持续到或持续到双方当事人规定的延展期或提前撤销期。