speedbooster

词形变化

speedboosters 复数 speedboosters

释义与例句

n.
  1. 1.

    A secondary lens mounted between the camera and a photographic lens so as to reduce the central part of an image obtained by the objective lens while concentrating the light rays on a smaller area.

    艺术
  2. 2.

    Something that boosts speed.

    罕用

词源

From speed + booster.

来源：wiktionary