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/ˈsaɪklɔɪd/
旋轮线的;情绪变化无常的
📖The 🔊 📐cycloid 🔊 📖curve 🔊 📖is 🔊 📖generated 🔊 📖by 🔊 📖a 🔊 📖point 🔊 📖on 🔊 the 📖circumference 🔊 📖of 🔊 📖a 🔊 📖circle 🔊 📖as 🔊 📖it 🔊 📖rolls 🔊 📖along 🔊 📖a 🔊 📖straight 🔊 📖line 🔊 .
旋轮线是由圆周上的一点在圆沿直线滚动时生成的曲线。
The cycloid curve is generated by a point on the circumference of a circle as it rolls along a straight line.