degression

英 [dɪ'greʃən] 美 [dɪ'greʃən]

• n. 下降；递减

例句

用作名词 (n.)

1. It is the reason of the adsorption capacity degression that the residual adsorption capacity is relatively more in the desorption process by water.
   洗涤脱附过程中残留吸附容量较大是活性炭吸附容量下降的根本原因。