It didn't come up to the nation discharge standard of effluent that of the treatment of printed circuit board wastewater with coagulant sedimentation.
分析了通常采用混凝法处理印制电路废水达不到国家一级排放水标准的原因 ,提出了相应的解决问题的方
In this paper, combining the typical application circuit of MC33370、TOPSwitch-FX family single-chip switching power, the design methods and noticed problems of two printed circuits are introduced in detail.
详细介绍了MC33370、TOPSwitch-FX系列单片开关电源的典型应用电路其印制电路,以供研制或开发电源新产品的技术人员参考。
This paper analyses the sources of common interference in electronic instruments and discusses the anti jamming techniques for hardware,software,printed circuit board,etc in terms of application.
分析了仪器仪表中常见干扰的来源 ,从应用的角度讨论了用硬件、软件和印制电路板设计时可用的抗干扰技术 。
By reducing bromine content and adding aluminum hydroxide in the surface of substrate for the printed circuit board,comparative tracking index(CTI)of the substrate is improved sigˉnificantly,meanwhile the size stability,heat resistance,the glass transition temperature of the substrate are improved too.
通过降低印制电路板的基板表层的溴含量并加入氢氧化铝,显著提高了基板的相比漏电起痕指数(CTI),并同时提高了基板的尺寸稳定性、耐热性、玻璃化温度。
A mathematical model basic on Newtonian fluids and lubrication theory for print circuit board was built for the process of fine screen printing.
在印制电路板上的应用尤为突出,而且向着更精更细的方向发展。
This paper mainly introduced electromagnetic compatibility problem that needs to be considered while designing print circuit board,and explain the reason of the problem produced.
主要介绍了在设计印制电路板时需要考虑的电磁兼容问题,并说明产生问题的原因。
The discussion about the question of treating sullage from the practice and train room of printed circuit board;
印制电路板实训室污水处理问题的探讨
Questions about the designing of printed circuit board;
印制电路板设计应注意的几个问题
Discussion About the Designing Work of Printed Circuit Board;
印制电路板设计工作的探讨
High Precision Screen Printing of Resistors on PCB;
精密网印在印制电路板内埋电阻中的应用
Study on a Way Which was Based on Protel to Predict the Reliability of PCB by Computer;
基于Protel的印制电路板可靠性预计计算机辅助方法研究
PCB Diagnostic Technique Based on Infrared Thermal Imaging;
印制电路板(PCB)的红外热像诊断技术
Potechnics Printed Circuits Ltd.
普迪印制电路有限公司
printed circuit board portable tester
印制电路板袖珍测试器
interlayer contact
层间接触-印制电路板的
interlayer continuity
层间连接-印制电路板的
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
Application of EMC Design in PCB
电磁兼容设计在印制电路板中的应用
Application of New and High Technique in Electroplating for Printed Circuit Board
高新技术在印制电路板电镀中的应用
A ( non-removable ) printed circuit board to which other ( remov able ) printed circuit boards connect.
一种(固定的)印制电路板,其它的印制板电路板就连到这块板上。
Come to Understand Cleaner Production Standard--PCB Manufacturing
印制电路板制造业清洁生产标准理解
A conductor connecting two circuits on opposite sides of a printed circuit board.
馈通连结印制电路板正反两面两个电路的导体
Series for printed boards outside dimension
GB/T9315-1988印制电路板外形尺寸系列
infrared fault diagnosis tester for printed circuit board
印制电路板故障红外诊断测试仪
Adhesive coated polyester film for flexible printed circuits
GB/T14708-1993挠性印制电路用涂胶聚酯薄膜
copper foil laminate
铜箔叠层板-印制电路板的
A replaceable printed circuit board.
一种可替换的印制电路板。
The patternes series for artwork master of printed circuits
GB/T12559-1990印制电路用照相底图图形系列
Advanced Drilling Technology of Micro-Via in PCB
印制电路板超细微钻孔先进加工技术
Finite Element Analysis and Optimization of Printed Circuit Board;
印制电路板有限元分析及其优化设计
