packing ring
相关英语词汇推荐
- settling off
- streww-strain tester
- wood crib
- electronic probe sensor
- water absorption test
- cheese roll
- singing split
- ricing
- button specks
- abrasive
- pulp purification
- linear sweep
- buff (ing) paper
- dandy marks,dandy worm
- dynamite paper
- setting mortar
- down stroke,undershoot
- protective paper
- florist crepe paper
- prosenchymatous cell