坚牢 meaning in English
fastness
firmness
hardness
kien lao
tenacity
Examples
- Colorfastness of perspiration test m c
耐汗坚牢度试验机 - Colorfastness to rubbing test m c
耐摩擦坚牢度试验机 - Colorfastness to washing test m c
耐水洗坚牢度试验机 - " prisoner , tell me , who was it that wrought this unbreakable chain ?
“囚人，告诉我，是谁铸的这条坚牢的锁链？ ” - Chlorazol fast pink bk
氯唑坚牢桃红