回かい転てん軸じく

noun

axis of rotation; rotational axis

Technical term used in physics, engineering, and mechanics to refer to the line around which an object rotates.

• 地ち球きゅうの回かい転てん軸じくは約やく23.4度ど傾かたむいている。

  The Earth's rotational axis is tilted about 23.4 degrees.

• このモーターの回かい転てん軸じくがずれている。

  The rotational axis of this motor is misaligned.