NOUN
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a line that passes through the center of curvature of a lens so that light is neither reflected nor refracted
in a normal eye the optic axis is the direction in which objects are seen most distinctly
How To Use principal axis In A Sentence
- But the principal axis of the Conservative campaign is scandal-mongering.
- He gave a proof of a result due to Maclaurin, that the attractions at an external point lying on the principal axis of two confocal ellipsoids was proportional to their masses.
- Double row cylindrical roller bearing is applied on machine tool principal axis.
- The principal axis effected the moving stability and action accuracy of the R 20 cathode bobbin making machine.
- Finally, the discussion is carried out about how to improve the stiffness of central principal axis.
