投资成本回收年限
the capital payback period
投资回收年限
number of years of investment recovery
投资价差回收年限
the number of years for recovery of investment price difference
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
设计使用年限100年
Design Useful Life of 100 Years
10年回报试验
10-year hindcast experiments
40年回顾
detailed review of 40 years
C2-C4烷烃回收
recovery of C2-C4 alkanes
Clinsulf-SDP硫磺回收装置
Clinsulf-SDP sulfur recovery unit