a fairly aggressive technique for spam filtering is what i would call the " whitelist plus automated verification " approach 对于垃圾邮件的过滤,有一种主动性相当强的技术,我想称之为“白名单加自动验证”方法。
the followed problems have been deeply researched : integrate seamlessly with existing verification tools, design data abstraction, automated verification flow implement 在该体系结构下,研究了验证工具的集成、设计数据的抽象和自动化流程的实现等问题;3