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。
Depth of field: with prqactices diode system (IDS), high-capacity ensures that the depth of field in the production of reliable. Autocompensation printing plate surface unevenness. 有了智能化的二极管系统(IDS),高景深的能力保证了生产的可靠进行。自动补偿印版表面的不均匀度。
And as if the sound of his uncle's name steadied him for an instant, Charlie made for the door with an unevenness of gait which would have told the shameful truth if his words had not already done so.