noun🔗Share凸轮轴 A shaft fitted with cams; especially one in a piston engine that activates the valves."The mechanic replaced the camshaft in my car's engine, which now allows the valves to open and close smoothly. "机械师更换了我汽车发动机里的凸轮轴,现在气门可以顺畅地打开和关闭了。machinepartvehicletechnicalindustryChat with AIVocabulary GamePractice Reading