| During speech, singing, or playing a wind instrument, the size of the aperture is narrowed and varied, to produce sounds of different pitch. |
| The widest zone begins with a belt, composed of two cords and two ribbons, geometrically ornamented, while the aperture is wavily etched. |
| I have a large cardboard box the size of a tea chest with an aperture in front which people can see through. |
| Large aperture constraints require an achromatic lens for situations needing superior image quality and color correction. |
| It can be converted from a right-handed weapon to a left-handed one by simply changing the bolt and casing ejector aperture. |
| In order to concentrate more light at the aperture, they placed a glass ball lens on the upper side of the tip prior to the assembly step. |
