KF94

词形变化

KF94s 复数 KF94s

释义与例句

n.
  1. 1.

    An air particulate filtration standard originating in the Republic of Korea, South Korea, which requires filtration of 94% of air particulates.

    不可数 可数
  2. 2.

    Ellipsis of KF94 filter, a filter implementing the standard.

    可数 不可数
  3. 3.

    Ellipsis of KF94 mask, a facemask using a filter conforming to the standard.

    可数 不可数

词源

Initialism of Korean Filter with 94% filtration efficiency.

来源：wiktionary