standard rate zone 标准税率范围

zone rate system 区域计费制

exchange rate target zone 汇率目标区制

Heart rate zone 心率区间 ; 心率区

standard tax rate zone 标准税率范围

Exchange Rate Target Zone Theory 汇率目标区理论

constant rate zone 恒速区

rate-zone centrifugation 速率区带离心法

flow rate in grinding zone [机] 研磨区物料速度