Wash care matters: do not clean with alkali sanding or PC board, do not use hard and dry cloth or brush appearance, avoid hair picture.

清洗留神事项：不要打磨或用强碱清洗洗p C板，不要用干硬布或硬刷子刷外表，避免发生拉毛景象。

youdao

And in this article, various process parameters such as electrolysis alkali wash, pickling and chemical displacement copper plating, testing equipment type and anneal process are given.

文中给出了电解碱洗、酸洗及置换镀铜时各种工艺参数及所用试验设备型号及拉拔退火工艺。

youdao

The principles of purification units with water and alkali wash, and the characteristics of new technology of complex tower and effects of innovation were discussed.

详细阐述了水洗碱洗净化装置的原理及组合塔新技术的特点和改进后的效果。

youdao