stop up
释义（英文）
动词 Verb
- To fill a hole or cavity, or block (an opening or passage), as with a plug.
- (UK, law) To permanently close or block (a road or path); to legally extinguish a right of way.
- (photography) To increase the aperture of a photographic lens, moving from an f/stop represented by a higher number to an f/stop represented by a lower number and causing more light to pass into the camera.