Correct

活塞

/ huósāi /
Strokes

Definition

piston/valve

Example

As a Noun

piston

1
Huósāi
活塞
yùndòng
运动

piston motion

2
Huósāi
活塞
quān

piston ring

3
Huósāigǎn
活塞杆

piston rod