bifocal

a. 双焦的 [医] 双焦点的

别名

bifocus

释义与例句

adj.
  1. 1.

    Having two focal lengths.

    工程 物理
  2. 2.

    Divided into two parts, one of which corrects for distance vision and the other for near vision.

词汇关系

形容词

近义相关 1

central

词源

By surface analysis, bi- + focal, or, by surface analysis, bi- + foc(us) + -al.

来源：wiktionary