Axis
01
the central point or line around which an object turns
例子
The Earth spins on its axis once every twenty-four hours.
The fan blades rotated smoothly around their axis.
02
a straight line that defines the symmetry or structure of a figure or object
例子
The artist drew an axis to guide the proportions of the face.
The ellipse has both a major and a minor axis.
03
the second cervical vertebra, forming a pivot that allows the head to turn
例子
The axis enables rotation of the head from side to side.
A fracture of the axis can severely restrict neck movement.
04
a group of nations aligned for a common political or military purpose
例子
The new economic axis between the two countries changed global trade.
The regional axis formed to promote shared security interests.
05
the alliance formed by Germany and Italy in 1936, later joined by Japan and others, opposing the Allies during World War II
例子
The Axis powers fought against the Allies in World War II.
The defeat of the Axis ended the war in 1945.
06
the central structure of a plant around which organs or parts are arranged
例子
The flower clusters grow along a single central axis.
The plant 's axis supports multiple layers of leaves.
07
轴, 参考线
a reference line used in coordinate systems to provide a framework for locating points
例子
When graphing functions, it 's essential to label the axes to provide context for the plotted points.
在绘制函数图形时，标记轴以为绘制的点提供上下文是必不可少的。
The plot of the function crosses the x-axis at two points, indicating the roots or solutions of the equation.
函数的图像在两点穿过x轴，表示方程的根或解。
