eyefoo_3.0.18，免安装护眼神器，定时电脑黑屏锁定休息

基于0.18 μm CMOS工艺，设计了一种3.3 V低压轨对轨（Rail-to-Rail）运算放大器。该运算放大器的输入级采用3倍电流镜控制的互补差分对结构，实现了满电源幅度的输入输出和恒输入跨导；输出级采用前馈式AB类输出控制电路，保证了轨对轨的输出摆幅以及较强的驱动能力。仿真结果表明，直流开环增益为120 dB，单位增益带宽为5.98 MHz，相位裕度为66°，功耗为0.18 mW，在整个共模范围内输入级跨导变化率为2.45%。

FreeCAD-0.18 适用于64位Windows系统 FreeCAD是一个基于OpenCASCADE的开源CAD/CAE工具。 OpenCASCADE是一套开源的CAD/CAM/CAE几何模型核心，来自法国Matra Datavision公司，是著名的CAD软件EUCLID的开发平台。 FreeCAD是一种通用的3D CAD建模。发展是完全开源（GPL的LGPL许可证）。FreeCAD直接的目的是在机械工程和产品设计，也适合在更广泛的用途，如建筑或其他工程专业，工程周围。

安装PowerGraph所需的压缩包，libevent-2.0.18-stable.tar.gz。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。

ultracomparev21.10.0.18_CHS_Win10，免安装，仅供学习，

SMIC_0.18MMRF_Reference_Manual

mysql-8.0.18-winx64.msi

delphi开发的控件，indy9.0.18版安装程序。用于网络数据传输

libusb 的帮助手册 V1.0.18 libusb is an open source library that allows you to communicate with USB devices from userspace. For more info, see the libusb homepage. This documentation is aimed at application developers wishing to communicate with USB peripherals from their own software. After reviewing this documentation, feedback and questions can be sent to the libusb-devel mailing list. This documentation assumes knowledge of how to operate USB devices from a software standpoint (descriptors, configurations, interfaces, endpoints, control/bulk/interrupt/isochronous transfers, etc). Full information can be found in the USB 3.0 Specification which is available for free download. You can probably find less verbose introductions by searching the web. Library features •All transfer types supported (control/bulk/interrupt/isochronous) •2 transfer interfaces:1.Synchronous (simple) 2.Asynchronous (more complicated, but more powerful) •Thread safe (although the asynchronous interface means that you usually won't need to thread) •Lightweight with lean API •Compatible with libusb-0.1 through the libusb-compat-0.1 translation layer •Hotplug support (on some platforms). See Device hotplug event notification.

基准电压源可广泛应用于A/D、D/A转换器、随机动态存储器、闪存以及系统集成芯片中。使用0.18 μm CMOS工艺设计了具有高稳定度、低温漂、低输出电压为0.6 V的CMOS基准电压源。