smudginess

基本解释

Of smudginess of dark and gloomy of colour and lustre fizzle out for shade.
色泽晦暗不鲜明的为阴黄。
In the production process of PCB, there are many defects such as surface smudginess, solder mask unevenness, text excursion, pad damage, track damage etc.
在印刷电路板的生产过程中,会产生外观不整洁、阻焊不均匀、文字偏移、线路及焊盘破损等缺陷。
The results show that the models could correctly reflect the alteration of the smudginess coefficiency and give the advice of on-line soot-blowing to the operators.
大量试验表明,本文所建的模型能够准确地监测锅炉灰污的发展状况,并能起到指导和优化吹灰的作用。
remove smudginess from one's coat
去掉上衣上的污迹