查询词典 secure

The stem of the original Charnley component was about 13 cm long. This was long enough to obtain secure fixation in the metaphysis and proximal diaphysis of the femur.

最初，Charnley型假体柄长约13cm，该长度足以使之在股骨干骺端及近端骨干内达到可靠的固定。

This differential method is used to secure a stable operation and also to facilitate the tuning of the control functions.

这种差分的方法用来确保操作的稳定并方便控制功能的调试。

In this paper, the concept of network security and security structures of OSI and Internet is introduced, and various threats confronting the computer network are also discussed. Several kinds of network information security technologies, including firewall technology, virtual private network, intrusion detection system, data encryption technology, identity authentication and security protocol etc. are also examined. The security of internal network is the biggest problem in the construction of each network. The solution to this problem lies in setting up a firewall. The theory of a firewall and the approach to its actualization is studied. Intrusion detection system, an important part of the computer network security system, has gained extensive attention. IDS monitors the computer and network traffic for intrusion and suspicious activities. It not only detects the intrusion from the extranet hacker, but also the intranet users. The emergence of virtual private network paves the way for realizing secure connection of LAN quickly and at a relatively low cost. The concept, function, key techniques, including the tunnel technology, and the ways to realize VPN are expounded in this paper. Also introduced is the data encrypt network technology, which is called the soul of computer network security, such as digital digest, digital signature, digital certificate, digital encrypt arithmetic and so on. At the same time, the principle and the process of implementing network security by digital certificate and digital signature, the basic principle and characters of security protocols, and finally, three of the security protocols, concerning the security problems in network, IPsec, SLL and SET are analyzed in detail Computer network system should be a system of dynamic defence, both dynamic and static, passive as well as active, and even offensive, combined with management and technology.

本文系统地介绍了网络安全的概念、OSI及Internet的安全体系结构，并讨论了计算机网络面临的各种安全威胁；内部网络的安全问题是每个建网单位面临的最大问题，可以认为防火墙技术是解决网络安全的一个主要手段，本文研究了防火墙的原理及其实现手段；作为一种主动的防御措施，入侵检测系统作为网络系统安全的重要组成部分，得到了广泛的重视，TDS对计算机和网络资源上的恶意使用行为进行识别和响应，不仅检测来自外部的入侵行为，也监督内部用户的未授权活动；虚拟专用网技术的出现，为实现网络间的连接提供了快速安全但又相对便宜的手段，本文较深入的探讨了实现VPN的隧道技术，并对VPN的概念、功能、实现途径、基本构成、关键技术及发展前景等问题进行了全面论述；数据加密技术是网络安全核心技术之一，本文从数据加密算法、数字摘要、数字签名及数字证书等几方面简要介绍了数据加密技术，并分析用数字证书和数字签名实现网络安全的原理和过程；对安全协议的基本原理、主要特点进行了较为深入的研究，并就网络的安全性问题剖析了三种安全协议：IPsec协议、SLL协议和SET协议。

Chapter 3 dissertates the structure, trust model, security performance and development of PKI, then discusses the correlated technologies of PKI which includes message digest, digital signature, digital time stamp, digital certificate, SSL, SET and IPSec protocol.

首先分析了PKI的体系结构、信任模型、安全性能和发展方向，然后讨论了PKI的相关技术：包括消息摘要，数字签名，数字时间戳，数字证书，SSL协议，安全电子交易(Secure Electronic Transaction，SET)协议，和Internet安全协议(Internet Protocol Security，IPSec)。

What is more, the use of digital technology makes the signal transmission to the electronic control system extremely secure.

此外，使用数字技术使得信号到电子控制系统的传输极为安全可靠。

And workers don't know whether their retirement will be dignified and secure.

和工人不知道他们的退休将是有尊严和安全。

Be aware that many "diploma mill" schools make up their own accrediting agencies in order to trick students into feeling secure.

要注意，很多假文凭的学校为了欺骗学生得到他们的信任，捏造自己是受认证机构认可的。

The diplomatic bag is an important means used by diplomatic missions to secure the freedom and confidentiality of diplomatic correspondence.

外交邮袋是保证外交机构通信自由和通信安全的特殊的"邮袋"，具有可资识别的外部标记，其构成要件必须附合法律规定，在运送过程中不得被无权机关或人员开拆与扣留。

Network Security: This path is directed toward network professionals who design and implement Cisco Secure networks.

网络安全：这条道路是针对网络专业人员谁设计和实施思科安全网络。

Your Mission is to secure the area and disarm the explosives.

你的任务是保证这个地区的安全并拆除炸弹。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。