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ExpressPCB 是一款免费的PCB设计软件，简单实使。可以画双层板。 Our Free PCB software is a snap to learn and use. For the first time, designing circuit boards is simple for the beginner and efficient for the professional.   Our board manufacturing service makes top quality two and four lay ...

ExpressPCB 是一款免费的PCB设计软件，简单实使。可以画双层板。 Our Free PCB software is a snap to learn and use. For the first time, designing circuit boards is simple for the beginner and efficient for the professional.   Our board manufacturing service makes top quality two and four lay ...

This document provides practical, common guidelines for incorporating PCI Express interconnect layouts onto Printed Circuit Boards (PCB) ranging from 4-layer desktop baseboard designs to 10- layer or more server baseboard designs. Guidelines and constraints in this document are intended for use on b ...

一个将数字转换成文本（例如32转换成thirty two）

Persistence Layer s ebook and source code.

Enter Two Numbers:26 35 the sum is 61 Enter Two Numbers:26 35 the sum is 61

ngrep strives to provide most of GNU grep s common features, applying them to the network layer. ngrep is a pcap-aware tool that will allow you to specify extended regular or hexadecimal expressions to match against data payloads of packets. It currently recognizes TCP, UDP and ICMP across Ethernet, ...

Scott W. Ambler在1998年写的关于ORM Persistence Layer的详细设计论文，本文档张笑猛翻译的中文版．

根据Scott W. Ambler在1998年写的关于ORM Persistence Layer的详细设计论文的设计思路,Artem Rudoy 开发了一个开源的ORM实现 -- PL(Persistence Layer)开源项目。

Simple DirectMedia Layer - Simple DirectMedia Layer 是一个跨平台的多媒体库设计用来提供快速图形framebuffer和音频驱动。应用MPEG为软件，模拟器或其他流行的游戏回放声音。支持Linux, Win32, BeOS, MacOS, Solaris, IRIX, and FreeBSD