词族 · deltoid
词形变化
英语词源
- deltoid (adj.)
- 1741, in deltoid muscle, so called for its shape, from Greek deltoeides "triangular," literally "shaped like the letter delta;" see delta + -oid.
权威例句
- 1. Construct an animation of the deltoid sliding on two mutually perpendicular lines.
- 建构一动态绘图:展示三角线沿著互相垂直的两轴滚动.
- 2. Show how a deltoid of maximal size slides inside a stationary astroid.
- 在固定不动的星状线内,有一个最大的三角线在其间滚动.
- 3. Construct two mutually orthogonal tangents of the deltoid. Where do they meet?
- 三角星形线的两条互相垂直的法线的交点在哪里?
- 4. Construct rotating cardioid and deltoid while remaining orthogonal to each other.
- 作旋转的心脏线和旋转的三角线,且彼此维持正交.
- 5. Construct an animation displaying the deltoid sliding inside a fixed nephroid.
- 建构一动态绘图:展示三角线沿著一固定的肾脏线内部滑动.