ext 2890.
问题描述：
ext 2890.
May I remind you that all new lab equipment should be registered with Store & Supplies,Room 354 (ext 2890).NB:new items must be notified before 1700hrs on the last day of the month of purchase,i.e.within the current budgeting month.All a/c nos must be recorded.
以上是全文 其中的ext 2890.
答
这个是电话分机的号码.如果你在公司里面,只要拨打2890,就直接挂过去了.