bluing
/ˈbluːɪŋ/📚 59930中考高考四级六级考研托福a blue material, such as indigo, used in laundering to counteract yellowing 蓝色漂白剂; 如靛蓝
noun [物质名词]靛青漂白粉；发蓝处理
Pretreatment, bluing and post treatment of this process were introduced.
介绍了前处理、发蓝及后处理工序。
verb [vt. 及物动词]把……染成蓝色（blue 的 ing 形式）
The practice shows that proper measures can be taken to effectively prevent red exo-frost on bluing coating.
实践证明，采用适当措施可以有效防止发蓝膜的红色挂霜。
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