更改频率由每12小时一次改为6小时一次.的翻译：Changing the frequency from once in every 12 hours to 6 hours at a time. 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

Change the frequency from once every 12 hours to 6 hours.

Changing the frequency from once in every 12 hours to 6 hours at a time.

The change frequency one time changes 6 hours one time by every 12 hours.

change frequency from every 12 hours to 6 hours a day.

Changing the frequency from once in every 12 hours to 6 hours at a time.