impactor

n. 撞击器；悬浮微粒的取样器

发音

US /ɪmˈpæktɚ/
UK /ɪmˈpæktə/

词形变化

impactors 复数 impactors

释义与例句

n.
  1. 1.

    Any of several machines or devices in which a part impacts on another, or on a material.

    cascade impactor

  2. 2.

    An object which impacts another.

    Chicxulub impactor

词源

Borrowed from New Latin impāctor, from impingō + -tor.

来源：wiktionary