production decline period

基本解释

In the stable production period, the decline feature presents exponential law.
稳产递减阶段产量下降呈指数规律变化；
That period saw the decline of the manor system, and the radical change of production structure and the means of production, all these lead to the decline of community.
中世纪晚期，庄园制解体，村庄生产结构、土地关系和生产方式已经发生根本变革，这些都使共同体走向衰落。
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And the two heat exchanger devices after a prolonged period of use produced scaling so that heat exchanger equipment performance, production capacity decline, it must be cleaned.
一催化和四蒸馏的换热器装置经过长时间的使用产生了结垢，使设备的换热性能、生产能力下降，因此必须对其进行清洗。

Based on these, Mr Simmons concluded that Saudi Arabia's biggest fields were already past their peaks, required ever more expensive technological fixes to prop up production and would soon enter a period of inevitable and rapid decline.
ECONOMIST: Face value
Our base estimates project that the production cost of solar cells for SunPower will steadily decline through our forecast period.
FORBES: Polysilicon Price Pop Casts Shadow On SunPower's Profits