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。
Conclusion: ART recommendations for stage I seminoma are declining. Men in less educated regions and the youngest men were less likely to receive a recommendation for ART.
结论：推荐I期精原细胞瘤患者行art的数目在减少。那些受教育较少区域的人和很年轻的男性不太容易接受ART治疗。
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。
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