With the completion of the implementation of Release 4 at Headquarters, the previous mainframe payroll system was discontinued at Headquarters as of February 2001, after a month's parallel as a contingency measure.
总部在完成实施单元四后，作为一项临时措施，主机薪金系统在和单元四并行运作了一个月后，从2001年2月起便停止使用。