答：主要区别在于，发达国家可能具有能够发现此类疫情的较精密的监测机制以及较强大的食品安全检查体系。

A: The main difference is that developed countries may have more elaborate surveillance mechanisms to detect such outbreaks and stronger food safety systems in terms of inspections.

youdao

安全机制需要提供强大的身份验证特性以及保密性和其他的特性，例如单点登录(SSO)。

A security mechanism needs to provide strong authentication features as well as privacy and features, such as single sign-on (SSO), for example.

youdao

图2的中心展示的是Tivoli的WebSEAL产品，该产品充当代理的角色并提供安全机制来控制对网络中的文档以及Web对象的访问。

In the center of the diagram in Figure 2 is Tivoli's WebSEAL product, which serves the role of a proxy and provides a security mechanism to control access to documents and Web objects in the network.

youdao