Fewer workers are needed to solder circuit boards.

焊接电路板需要较少的工人。

Adapter CARDS are circuit boards that provide more memory or control peripheral devices.

转接卡是能够提供更大存储或控制外接设备的电路板。

Manufacturing of batteries and printed circuit boards is a chief source of such pollution.

而电池制造和印刷电路板制作是此类污染的主要来源。

From 1985 Tannoy abandoned printed circuit boards and wafer switches in the crossover designs.

从1985年天朗遗弃在交叉印刷电路板的设计和晶圆开关。

An electrical connector includes a housing (12) and circuit boards (13) carried by the housing.

一种电连接器，包括外壳(12)和电路板(13)，电路板由外壳支撑。