Column T_ag shows the time in seconds that the CM agent spends for storing the mail in CM.

列t _ ag显示CM代理将邮件存储在CM中所花的时间，单位为秒。

youdao

While there is a column called PID as depicted in Figure 3, it will always have a value of zero and not reflect the agent number.

虽然有一个名为pid的列，如图3所示，但是这个列的值总是为0，并不反映代理数量。

youdao

Hodgman was a self-described former professional literary agent at the time, first making a splash amongst the literati some five years prior with the publication of the column "Ask a Former Professional Literary Agent" for uber-hip San Francisco publisher McSweeney's.

ENGADGET: John Hodgman on the death of publishing and being a Mac trapped in a PC's body