A central rod or bar that serves as the core around which something is rolled, such as a scroll or hanging artwork.
The main supporting structure that allows a rotating object, like a wheel, to pivot around a fixed point.
A crucial component or individual that plays a pivotal role in the development or progression of a situation or activity.
A slender stick or handle that aids in the manipulation of an object, often referring to the part of an instrument or tool, such as a pen or match.
A line that serves as a reference point in geometry, enabling the mirroring of shapes or the definition of coordinate systems.
Example:
その小説は南北戦争をにしている。
The central axis or core element that acts as the primary point around which other components or ideas are organized or structured.
A key person or issue that serves as the driving force behind initiatives within an organization or group, influencing the direction and dynamics of their activities.
In mathematics, a pair of perpendicular symmetry axes that pass through the center of a conic section, such as the major and minor axes of an ellipse.
The shaft that transmits power directly from a motor to machinery, playing a crucial role in mechanical operations and efficiency.
The foot that acts as the main support for the body during movement, providing stability and balance.
A metaphorical foundation or central point of reference upon which actions or strategies are based, often emphasizing the importance of a particular aspect in a broader context.
The axis in a two-dimensional coordinate system that runs horizontally and is used to represent the independent variable, typically labeled as the x-axis.
A reference line that intersects the vertical axis at a right angle, indicating the position of points in a horizontal direction within a graphical representation.
A horizontal measuring line in a mathematical graph, which helps in visualizing and comparing data across a breadth, as opposed to height or depth.
The central line around which an object rotates, serving as the fixed point that facilitates spinning or turning motion.
A structural component that supports the rotational motion of mechanical parts, enabling smooth operation in machines such as wheels or turbines.
A conceptual line that represents the equivalent point in a three-dimensional space where movement or transformation occurs, often associated with directional change or stability.