When the reserve-production ratio approaches to10 years, the development of a field may come to a declining stage.
当储采比接近于10时，油气田开发可能会进入递减阶段。
However, with the increase of general screening and the diagnosis of more early stage gastric cancer, mortality rates for gastric cancer have been declining worldwide in recent decades.
可幸的是，随着普查的流行及更多早期胃癌的诊断，近年本病的死亡率已有下降趋势。
During the flush production stage, the oil is produced in relatively large, but rapidly declining amounts from the natural reservoir energy.
在自喷期内，依靠天然储层能量开采，产量相对较高，但下降较快。
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