n.渐减,递减,下降;
例句:
a new probe of the degression law of marginal effect
边际效用递减规律新探
distinct areas of electric field also exist when different jet distances are applied, and the intensity in each area tends to degression.
在不同的喷射距离产生的阴极电流密度均也存在明显的分区特征,各区强度呈递减趋势。
a research on degression of agricultural acreage in hubei province
湖北省耕地面积递减特征研究