内部通知 meaning in English

internal circular

Some people received that memo in their office .
有些人是在他们的办公室里收到这份内部通知的。
Before the day was over, henry issued a cryptic memo to top executives .
亨利赶着在当天就向高级职员发出了一份使人费解的内部通知。
Instead , the generator writes the notification to an internal notification table
而是由生成器将通知写入内部通知表。
The cause of the overflow is often too many changes in a short period of time , causing the internal notification buffer to overflow
溢出通常是因为在短时间内有太多更改，导致内部通知缓冲区溢出。