step公司内部的原理图审核文档，有详细的关于静电保护以及相关的设计要求。-Step company internal schematic review document, there are detailed on the electrostatic protection and related design requirements.

运算放大器信号运算与变换电路的设计与制作，很具有教学意义。-The formal opening report template applicable to all schools, including the mission statement, the audit table, opening report............