noun🔗Share凸轮，偏心轮 A turning or sliding piece which imparts motion to a rod, lever or block brought into sliding or rolling contact with it."The engine used cams to push the valves open and closed, controlling the flow of fuel and air. "发动机使用凸轮来推动气门打开和关闭，从而控制燃油和空气的流动。machinetechnicaltechnologypartdeviceChat with AIVocabulary GamePractice Reading
noun🔗Share凸轮，偏心轮。 A curved wedge, movable about an axis, used for forcing or clamping two pieces together."The craftsman used cams to tightly clamp the wooden boards together while the glue dried. "工匠用凸轮将木板紧紧地夹在一起，以便胶水干燥。machinetechnicaldevicepartChat with AIVocabulary GamePractice Reading
noun🔗Share土堆，土墩 A ridge or mound of earth."The farmer carefully plowed around the small cams of earth near the rose bushes. "农民小心地绕着玫瑰丛附近的那些小土堆犁地。geologygeographyenvironmentnatureChat with AIVocabulary GamePractice Reading
noun🔗Share岩石凸轮，机械塞 A camming device, a spring-loaded device for effecting a temporary belay in a rock crevice."The climber carefully placed two cams in the crack to protect himself as he moved up the rock face. "攀岩者小心地在岩缝里安放了两个岩石凸轮（机械塞），以保护自己在向上攀爬岩壁时的安全。sporttechnicalitemdeviceChat with AIVocabulary GamePractice Reading
noun🔗Share摄像头，相机。 Camera."The school installed security cams in the hallways for safety. "学校为了安全起见，在走廊里安装了安全摄像头。technologyelectronicsdevicemediacommunicationChat with AIVocabulary GamePractice Reading
