The electrolytic copper foil production for printed circuit board in the world has experienced almost fifty years. 印制电路板用电解铜箔产品在世界上已经历了近五十年的发展历程。
Describe the structure and performance of base material-cyanate ester resin, which for high frequency printed circuit board. 概述高频印制电路板基材和氰酸酯树脂系列的结构与性能。
All printed circuit boards are only retractable when the power is switched off. 所有的印刷电路板是唯一可伸缩时，在断电。
The battery is low profile, which allowed installation just above the Printed Circuit Board. 电池是袖珍型的，其可恰好安装的印刷电路板的上方。
