He investigates geometrical properties of cycloids , epicycloids, and hypocycloids.
他研究了摆线 、 圆外旋轮线和四点圆的旋轮线的几何性质.
词典精选例句
The tiny kitten approached the enormous bear and let out a purr and a mew.
那猫却走近体大腰圆的灰熊,冲它“喵呜“,“喵呜“地叫着.
《简明英汉词典》
It was Aristotle who proved the world is round. Plato popularized the concept.
亚里士多德证明了地球是圆的,柏拉图普及了这一概念。
《柯林斯高阶英汉双解学习词典》
