Correct

递降

/ dìjiàng /
Strokes

Definition

to go down by degrees/progressively decreasing

Example

As a Verb

fall gradually/progressively/by degrees/ successively

1
Gǎijìn
改进
gōng
工艺
  
,
shǐ
使
yuáncáiliào
原材料
xiāohào
消耗
zhúyuè
逐月
jiàng
  

Reduce the consumption of the raw materials month after month through improving the craftsmanship.