printed-circuit card是什么意思

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用法例句

The paper describes the working principle, printing method, and application of XYJ A fast circuit board printer.

介绍XYJ A型线路板快速印制机的工作原理、印制方法及应用。

Research on Boring Path Optimization of PCB;

印制板钻孔加工走刀路径优化

Plasma Technology and Its Application in PCB;

等离子体技术与印制板生产中应用

Approach to the Full-automatic PCB Printing Machine;

全自动印制板印刷机的探讨

The structural design, design parameters, material chosen and manufacture process of multi-pinhole compound die of main printed circuit board for large screen color TV are introduced.

介绍大屏幕彩色电视机主印制板多小孔复合模的模具结构、设计参数、材料的选用和制造工艺等。

The process includes: (1) activating a palladium substrate after electroless palladiumplating on the printed circuit boards; (2) then electrolessly depositing gold onto an activatedpalladium substrate.

概述了印制板化学镀Pd/Au组合镀层工艺:(1)印制板化学镀Pd以后活化Pd表面;(2)在活化过的Pd表面上化学镀Au。

The copper circuitry surfaces of printed circuit boards (PCB) which will be electrolessly nickel plated are activated by aqueous suspension of particulate zinc metal, and then the electroless nickel plating is carried out.

介绍了采用金属Zn粒子悬浮液活化要镀镍的印制板(PCB)Cu电路表面,使其可以进行化学镀镍的工艺方法,它可以克服Pd-Sn活化的缺点。