限定日期 meaning in Chinese

limiting date

Full - text search for articles , between certain dates , of a specific category , etc
文章的全文搜索，可以限定日期，或指定分类，等。
Air china blackout dates are subject to change without further notice
以上限定日期若有变动，依中国国际航空公布为准，恕不另行通知，。
Blackout dates above can be varied at any time without any further notice . please inquire when applying for award tickets
以上限定日期若有变动，恕不另行通知。请在申请兑换免票时，予以确认。