parfocal

/pahr-foh-kuhl/US // pɑrˈfoʊ kəl //

敷衍了事,敷衍塞责,敷衍,敷衍了事的

Definitions

adj.形容词 adjective

1
Optics.
- : of or relating to different eyepieces that all focus their images in the same plane, so that they can be interchanged without readjusting the instrument.