degressive例句
However, distant river field also is facing the dilemma with
degressive resource.
然而, 辽河油田也面临着资源递减的困境.
Resource increasing cost of
degressive, exploitation, this is the objective law that resource city avoids hard.
资源递减 、 开采成本递增, 这是资源型城市难以避免的客观规律.
The rule that field extracts , can divide commonly be high yield period, firmly period,
degressive period.
油田开采的规律, 一般可分为高产期 、 稳产期 、 递减期.