电路板

The experiment shows that the influence of Verdet constant of material and linear birefringence caused by varying environmental conditions can be real-timely compensated by this m...

还介绍了一种基于印刷电路板的空芯线圈新结构，其二次绕组无需手工绕制和电阻调整，额定电流 2 0A时，准确度 0 。2级；额定电流≥ 30 0A时，准确度 0 。2S级。

Purpose: Fitting usage printing and dyeing, Stamps trade calm down a drying machine, Bakes house conveyor; Passes heat-engine conveyor; Chihs silk or woolen goods assembly line conveyor; Far infrared dries machine conveyor; A wind of printing, Electron, Circuit board trade dries product line conveyor; Prints trade UV glazer, UV light solid machine conveyor; Wrappage trade spread the cloth machine, Adhesive machine, Compounds machine conveyor; Dress trade shrinks shape machine conveyor; Food trade dries product line conveyor.

用途：适用于印染、印花行业平幅烘干机、烘房输送带；过热机输送带；植绒流水线输送带；远红外烘干机输送带；丝印、电子、电路板行业烘干生产线输送带；印刷行业UV上光机、UV光固机输送带；包装材料行业涂布机、上胶机、复合机输送带；服装行业缩水定型机输送带；食品行业烘干生产线输送带等。

This low cost, low power, miniature 6 digit totaliser is designed for direct PCB mounting.

这种低成本，低功耗，微型6位totaliser是专为印刷电路板直接安装。

A printed circuit board that replaces or augments the computer's main microprocessor, resulting in faster performance.

加速卡 用于代替或增强计算机主要微处理器，以使其运算更快的印刷电路板。

Finally , introduced the question to should be paid attention to at the time of the board design of the circuiting.

最后介绍了对电路板设计时应注意的问题。

Traveling Salesman Problem is the well-known combination optimizing problem, it colligates the classical typicality of a type of combination optimizing problem, and exists .in VLSI chip manufacture, printing circuit design, X-ray crystallography, robot control and many other high-tech fields. According to N P-completed theory, TSP belongs to NPH, it can't be solved by routine search methods, and different types of solutions must be employed.

旅行商是组合优化中最为著名的问题，它综合了一大类组合优化问题的典型特征，并以不同的形式存在于超大规模集成芯片制造、印刷电路板设计、X-射线结晶学、机器人控制等高科技领域。

The etching solution is composed of Potassium hydroxide, Sodium hydroxide, and additives. The window of demanding is crosshatched in certain conditions on polyimide flexible substrate.

采用化学蚀刻法，蚀刻液由氢氧化钾、氢氧化钠和添加剂组成，于一定的工艺条件下在挠性印制电路板聚酰亚胺基材上开出所需大小、形状的窗口。

The etching solution is composed of Potassium hydroxide , Sodium hydroxide and Additives . The window of demanding size is crosshatched in certain conditions on PI flexible substrate .

采用化学蚀刻法，蚀刻液由氢氧化钾，氢氧化钠和添加剂组成，在一定的工艺条件下在挠性印制电路板聚酰亚胺基材上开出所需大小，形状的窗口。

Traditional crosshatching process can't meet the small and high-density FPCB production that has high added value, whether because the pre-investment and maintenance costs are too high, or because precision is too low.

传统的开窗口工艺或者先期投入和维护成本高，或者精度不够，无法完成高附加值的小型、高密度的挠性电路板的生产上。

The demerits of the pre-investment and maintenance costs too high or precision too low to traditional crosshatching process are conquered. The new crosshatching technology on polyimide flexible substrate can be applied in the small and high-density FPCB products that have high added value.

该方法克服了传统的开窗口工艺具有的先期投入和维护成本高、精度不够的缺点，可以完成高附加值的小型、高密度的挠性电路板的生产。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。