静态投资回收期
stable investment recovery period
static payback time
初投资回收期
initial investment payback period
辅助回收回充设备
recovery and refilling equipment
回收回充设备
sufficient to support recovery equipment
recovery and refilling set
回收期
recovery period
payback period
recovery period of investment
deadline of reclaiming
Turnover period
回收期倒数法
pay back reciprocal method
回收期计算
calculation of payback periods