触媒作用 chù méi zuò yòng

DEFINITIONS

  1. catalysis

CHARACTERS

触 chù
HSK 5
butt, ram, gore; touch
媒 méi
HSK 5
go-between, matchmaker; medium
作 zuò
HSK 1
make; work; compose, write; act, perform
用 yòng
HSK 3
use, employ, apply, operate; use