电路板

The COF FPC production technology at home is in the primary stage of development. So it is the hot spot of research that produce COF FPC with right fine lines adapted to the increasing IC density of integration and deceasing I/O spacing.

于是，制作出与随着驱动IC集成度的急速提高，I/O端的间距日渐减小相适应的精细线宽线距的COF挠性印制电路板，成为了研究的热点。

Degaussing resistor is a thermistor (四四方方board, with three-pin components), their cold resistance is generally 12 ~ 47 ohm-ohm range, when the city electricity after, the resistance low power was the work of degaussing coil, degaussing coil current larger, making degaussed temperature resistance, resistance increased dramatically, resulting in flow through the degaussing coil current decreases sharply complete degaussing process.

消磁电阻其实是一个热敏电阻（电路板上四四方方的，有三个引脚的元件，），其冷态阻值一般为12欧姆~47欧姆不等，当市电经过时，其阻值较低，消磁线圈得电工作，消磁线圈的工作电流较大，使得消磁电阻的温度升高，阻值急剧增加，致使流过消磁线圈的电流急剧减小，完成消磁过程。

As deigning heat treatment methods of PWD , PWD should be settled in accord with flowing direction of gas and vertically in the closed space.

印制电路板热设计时，布局上最好沿空气流动方向安装，封闭空间情况下最好竖直安装。

After such a plate washer deionized water and de-static treatment, corrosion and breakdown will not circuit boards.

这样的洗板水经过去离子和去静电处理，不会腐蚀和击穿电路板。

10 The exposed corner of the PCB was slightly delaminated due to combustion of resin from the fibreglass matrix, but most of the solder joints in the area appeared to be intact.

由於玻璃纤维树脂的燃烧氧化，露出的印刷电路板已有些微分层损伤，但该区大部分的焊接点外表上仍未受损伤。

In view of the improvement on environmental protection and the reduction of costs for PCB fabrication, emphasis has been placed on the use of corrosion inhibitors as replacements for conventional tin -lead electrodeposits for the preservation of solderability.

鉴于电路板生产过程中环保和成本的要求，采用唑类缓蚀剂取代传统的锡铅合金镀层以保证可焊性。

From now on, in china, air-float separation technology and water- float separation technology mainly are applied for the separation between metal and nonmetal basing on recycling Fragmentized waste PCBs, but there exists low efficiency and second pollution for the tow recycle methods.

目前国内处理废弃电路板主要采用破碎后利用密度差的气流风选和水选进行金属与非金属的分选，存在效率低和二次污染等问题。

This company produces the PVA has excellent water wheel, and is usually used for glass substrates, printed circuit board production line or film, paper coating humidifying and cited the deal on.

本公司生产的PVA滚轮有优秀的吸水力，通常使用于玻璃基板、印刷电路板的生产线或底片、纸等增湿和举涂布的处理上。

In our daily life during debugging and test the circuit , when initialing the oscillograph, always we press the " AUTOSET " for short.

在我们日常的调试电路板和测量的过程中，初始化示波器时，往往我们&偷了一下懒&，按一下示波器上的&自动设置&按钮即可。

The overall component placing and signal muting should be as dose as possible to the planned final layout.

这块电路板的布局和布线与最终定型的版本越接近越好。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。