它们在整个时间段T内不变的翻译：They are not in the entire time period t 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

They remain unchanged throughout the time period t

They are not in the entire time period t

They are invariable in entire time Duan Tnei

Throughout the time period within which they T unchanged

They are not in the entire time period t