A rocking lever in an engine, especially one in an internal combustion engine which serves to work a valve and is operated by a pushrod from the camshaft.
（发动机，尤指内燃机的）摇臂
Example sentencesExamples
We had a really wild ride there when the left rear rocker arm snapped going over the crest of the hill.
The rocker arm must have enough room to operate the valve in a smooth motion both up and down without causing excessive load to the valve guide.
The system is activated via a two-piece rocker arm.
A small treatment cup, operating from a rocker arm directly off the seed dump pan and out of a small reservoir, meters one cup of treatment with each dump of the seed pan.
The engine's camshaft drives the pump pistons through a roll rocker arm.
Definition of rocker arm in US English:
rocker arm
nounˈräkər ärm
A rocking lever in an engine, especially one in an internal combustion engine which serves to work a valve and is operated by a pushrod from the camshaft.
（发动机，尤指内燃机的）摇臂
Example sentencesExamples
A small treatment cup, operating from a rocker arm directly off the seed dump pan and out of a small reservoir, meters one cup of treatment with each dump of the seed pan.
The engine's camshaft drives the pump pistons through a roll rocker arm.
We had a really wild ride there when the left rear rocker arm snapped going over the crest of the hill.
The system is activated via a two-piece rocker arm.
The rocker arm must have enough room to operate the valve in a smooth motion both up and down without causing excessive load to the valve guide.