研磨材料 yán mó cái liào

DEFINITIONS

  1. abrasive
  2. grinding material

CHARACTERS

研 yán
HSK 4
grind, rub; study, research
磨 mó
HSK 6
grind; polish; rub; wear out; a millstone
材 cái
HSK 4
material, stuff; timber; talent
料 liào
HSK 3
consider, conjecture; materials, ingredients