Correct

压路机

/ yā lù jī / 
Strokes

Definition

road roller

Example

As a Noun

(road/pavement/street) roller

1
Zhèndòng
震动
yālùjī
压路机

vibratory roller

2
Gǔntǒngshì
滚筒式
yālùjī
压路机

drum roller