noun 下载 🔗分享 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. Examples : "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。 machine technical technology part device 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 凸轮，偏心轮。 A curved wedge, movable about an axis, used for forcing or clamping two pieces together. Examples : "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。 machine technical device part 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 土堆，土墩 A ridge or mound of earth. Examples : "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。 geology geography environment nature 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 岩石凸轮，机械塞 A camming device, a spring-loaded device for effecting a temporary belay in a rock crevice. Examples : "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。 sport technical item device 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 摄像头，相机。 Camera. Examples : "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。 technology electronics device media communication 与AI对话词汇游戏阅读练习
