極きょく軸じく

noun

polar axis (of a telescope)

In astronomy, the axis of a telescope mount aligned with the celestial pole, allowing tracking of stars.

• 天てん体たい望ぼう遠えん鏡きょうの極きょく軸じくを北ほっ極きょく星せいに合あわせる。

  Align the polar axis of the astronomical telescope with Polaris.

noun

polar axis (in a polar coordinate system)

In mathematics, the fixed ray from the pole in a polar coordinate system, from which the angle is measured.

• 極きょく座ざ標ひょうでは、極きょく軸じくからの角かく度どで点てんの位い置ちを表あらわす。

  In polar coordinates, the position of a point is expressed by the angle from the polar axis.