Although the exploration level of oil and gas resources in the northern Songliao Basin was relative high, there were much undiscovered oil and gas resources.
松辽盆地北部的油气勘探程度虽然较高，但仍然有一些尚未发现的油气资源。
Although the exploration level of oil and gas resources in the northern Songliao Basin was relative high, there were much undiscovered oil and gas resources.
松辽盆地北部的油气勘探程度虽然较高，但仍然有一些尚未发现的油气资源。
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