focalise

1. 1.

   v concentrate on a particular place or spot；v bring into focus or alignment; to converge or cause to converge; of ideas or emotions；v become focussed or come into focus；v put (an image) into focus; we cannot enjoy the movie"

   vi. (使)聚焦；(使)限制于小区域

(使)限制于小区域；调焦距；调节...的焦距