名词
中文翻译：递减系数
同义词：
['declining coefficient', 'decreasing coefficient例句：1. The rate of decline in the population is slowing down.（人口减少的速度正在放缓。）']
例句：
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1. The rate of decline in the population is slowing down.
人口减少的速度正在放缓。
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2. The coefficient for calculating the cost of materials has been updated.
计算材料成本的系数已经更新了。
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3.The coefficient of friction between two surfaces is a measure of how easily they stick together.
两个表面之间的摩擦系数是衡量它们是否容易粘附的一个指标。