rank order system of oilfield scale
telegraphic order system
High level system trace
high level system tract
high water level system tract
low water level system tract
lot size
批量
批
批大小
批的规格
运作批量
每批数量
可靠度拒收水平
positive list system system
coupling mechanism between upper level and low level jet
fiscal system at county level and township level
interaction between upper level and lower level