求翻译：入侵检测技术是计算机网络安全防范体系的重要组成部分之一，入侵检测系统是一种主动式防御措施，作为防火墙技术的补充，它可以对系统或网络资源进行实时检测，它提供了对内部、外部攻击和误操作的实时保护。对入侵检测系统的研究和应用已经成为网络安全领域的重要内容。它的实现要通过: 入侵检测系统（IDS）与防火墙（FW）功能联合起来实现。是什么意思？

Intrusion detection technology is one important part of computer network security system, intrusion detection system is an active protection measures as a complement to the firewall technology, it can be a system or network resources in real time to detect, it provides for internal and external attacks and misuse of real-time protection. Research on intrusion detection systems and applications have become important issues in the areas of network security. Its implementation through: intrusion detection system (IDS) and the firewall (FW) capabilities combine to achieve.