缺乏上下文或国家信息使之不能把包过滤用于数据包为基础的协议，如文件传送协议。

Lack of context or state information makes it impossible to use packet-filters for datagram-based protocols such as File Transfer protocol.

youdao

缺乏上下文或国家信息使之不能把包过滤用于数据包为基础的协议，如文件传送协议。

Lack of context or state information makes it impossible to use packet - filters for datagram-based protocols such as File Transfer protocol.

youdao

智能邮件信息处理基于数据包过滤和协议分析处理技术，实现了邮件加密，签名的智能化。

The intelligent E-mail processing, which is based on the packet filtering and protocol analysis, makes the encryption and signature intelligent.

youdao

智能邮件信息处理基于数据包过滤和协议分析处理技术，实现了邮件加密，签名的智能化。

The intelligent E-mail processing, which is based on the packet filtering and protocol analysis, makes the encryption and signature intelligent.

youdao