单词 | epicycle |
释义 | epicycle['episaikl]n. 本轮 epicycle ep.i.cy.cle AHD: [µp“¹-sº”k…l] D.J. [6ep!7sa!k*l]K.K. [6Wp!7sa!k*l]n.(名词)1. In Ptolemaic cosmology, a small circle, the center of which moves on the circumference of a larger circle at whose center is Earth and the circumference of which describes the orbit of one of the planets around Earth.本轮:在托勒密宇宙论中的一个小的圆周,其中心在以地球为中心的一个更大的圆周上运动,其轨迹为环绕地球运行的行星的轨道2. Mathematics A circle whose circumference rolls along the circumference of a fixed circle, thereby generating an epicycloid or a hypocycloid.【数学】 周转圆:一个围绕着另一个固定圆周长滚动的圆,从而产生圆外旋轮线或圆内旋轮线,即外摆线或内摆线语源:1. Middle English epicicle 中古英语 epicicle 2. from Late Latin epicyclus 源自 后期拉丁语 epicyclus 3. from Greek epikuklos 源自 希腊语 epikuklos 4. epi- [epi-] epi- [前缀,表“在…之间”] 5. kuklos [circle] * see k wel- 1kuklos [圆周] *参见 k wel- 1继承用法:ep”icy“clic AHD: [-sº“kl¹k, -s¹k“l¹k] (形容词) |
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