防
焊
油
墨
防
焊
油
墨
Definitions4 characters (applied circuit board)
Usage•••frequent
Pronunciations
防
焊
油
墨
As word
1solder mask (applied to a circuit board)
2solder mask (applied to a circuit board)
3solder mask (applied to a circuit board)
4solder mask (applied to a circuit board)