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...

degressive的音标：degressive的英式发音音标为：[dɪ'gresɪv]degressive的美式发音音标为：[dɪ'gresɪv]...

adj.下降的，递减的...