Galvanic current method for measuring electrodeposition velocity of immersion silver plating for printed circuit board;
一种新的印刷电路板浸银镀速的测定方法
Finishing of printed circuit board in ethylenediamine-containing immersion silver system;
印刷电路板的乙二胺络合浸镀银工艺
Integrated treatment and reuse of wastewater from printed circuit board production;
印刷电路板生产废水的综合治理及废水回用
The Recovery of EDTA in Waste PCB Chemical-copper Solution;
印刷电路板化学镀铜液回收EDTA的研究
The Strain Electrical Measurement of Automatism Incising Machine with PCB;
自动切割机切割印刷电路板应变电测量
Hardware System of PCB Flying Probe Checking up System;
印刷电路板飞针检测硬件系统
This paper recommends some methods to improve the performance of digital system when designing printed circuit board(PCB).
针对高速、高精度数字系统对电磁兼容性的严格要求,分析了系统电源、地的重要性以及影响高速模数转换器(ADC)和数模转换器(DAC)电路性能的主要因素;在设计印刷电路板时,采用隔离数字部分与模拟部分、抑制地弹噪声等方法优化系统电源,通过改善ABC、DAC电路的供电方式、优化采样时钟和高速数字信号线来提高系统抗电磁干扰的能力;并比较了一个失败案例和一个成功案例,后者较前者带外抑制指标提高约15dB,表明采用所述方法可以有效改善数字系统的电磁兼容性。
Characterization of pyrolysis of waste printed circuit boards by high-resolution pyrolysis gas chromatography-mass spectrometry;
废弃印刷电路板材料裂解产物的高分辨裂解气相色谱-质谱分析
In order to solve the problem of secondary pollution during crushing of discarded printed circuit boards(PCB),pyrolysis behavior and corresponding pyrolysis products of discarded PCB were mensurated using TG-FTIR analysis system.
为了有效解决废弃印刷电路板在破碎过程中的二次污染问题,应用热重-红外(TG-FT IR)分析系统测定了电路板热解行为以及相应的气体产物。
A new method of measurement on near field electromagnetic radiation of printed circuit boards is described with the basic principle of its operation discussed.
文中主要阐述了一种测量印刷电路板近场电磁辐射的新方法，讨论了此种方法的基本工作原理。
Twin-loop Rogowski Coil Current Transformer Based on Printed Circuit Boards
一种基于印刷电路板技术的窄带型空心电流互感器
Procedure and Key Technical Points of Screen Printing for Printed Circuit Board
印制电路板丝网印刷工艺和技术要点
The Affection of PCB Layout Technology to EMC;
印刷电路板布线技术对电磁兼容性的影响
additive printed circuit technique
印刷电路的添加技术
printed circuit board
ph.1. 印刷电路板
printed circuit boards, PCBs, integrated circuitry diagrams
印刷电路板, 印刷电路板, 集成电路图
A CNC System Used on a PCB Drill Based on ARM
基于嵌入式技术的印刷电路板钻床数控系统
Research on Defect Detecting Technology of Printed Circuit Borad;
基于图像处理的印刷电路板缺陷检测技术研究
Characteristic and Key Technologies of High Speed PCB NC Drilling Machine
印刷电路板高速数控钻床的特点及关键技术
Research on Reuse Technology of Non-metals Recycled from Waste Printed Circuit Boards
废印刷电路板非金属粉资源化再利用技术研究
Innocuous management and resource recovery techniques for scrap printed circuit boards
废旧印刷电路板资源化技术及无害化对策评述
Progress of Recycling Technology Waste Printed Circuit Board
废印刷电路板资源化处理技术研究进展
PCBA Pring Circuit Board Assembly
印刷电路电路板组件
Surface Mount Technology and Printed Circuit Board Electrical Interconnection Reliability Research
表面贴装技术（SMT）与印刷电路板（PCB）电器互连可靠性的研究
PCB Defect Inspection and Marking Based on X-ray Image
基于X射线图像印刷电路板缺陷检测和标记技术
fibre-glass printed circuit board
玻璃纤维印刷电路板
A printed circuit connector contact.
印刷电路板连接器触点。
twin surface print circuit light-sensitizer
双面印刷电路板感光机
