sulfide blackening硫化黑变
blackening blacken使变黑
blackening surface板面发黑
blackening g染黑法
bulb blackening灯泡变黑;玻壳黑化
blackening bath加厚液
wet blackening[化工] 涂炭粉浆
A new process of electroless blackening on aluminum alloy was developed.
开发出一种铝合金化学发黑新工艺。
参考来源 - 铝合金化学发黑新工艺V-T/V-I（及物动词/不及物动词） To blacken something means to make it black or very dark in colour. Something that blackens becomes black or very dark in colour. 使变黑; 变黑
The married women of Shitamachi maintained the custom of blackening their teeth.
下町的已婚妇女保留了染黑牙齿的习俗。
V-T（及物动词） If someone blackens your character, they make other people believe that you are a bad person. 诋毁
They're trying to blacken our name.
他们在设法败坏我们的名声。