| 释义 |
impactor
im·pact·or I5057850 (ĭm-păk′tər)n. A body that strikes another, usually larger body in an impact, as a comet striking a planet.impactor
impactor[im′pak·tər] (engineering) A general term for instruments which sample atmospheric suspensoids by impaction; such instruments consist of a housing which constrains the air flow past a sensitized sampling plate. Also known as impactometer. (mechanical engineering) A machine or part whose operating principle is striking blows. (mining engineering) A rotary hammermill which crushes ore by impacting it against crushing plates or elements. |