1)cycle based simulator,周期期底模拟器2)cycle sag simulator,周期下降模拟器3)cycle-accurate simulator,周期精确的模拟器4)Life cycle simulation,寿命周期模拟5)bottom(trough)of business cycle,周期谷底6)dummy period,虚拟周期
用法和例句
The dummy period method is applied to control the quality of crude inventory in the last period.