linked blocks meaning in English

相连大厦

Time , bandwidth and memory resources are occupied to result in the link block as well as the deluge of unhealthy messages . currently , there are some mature filtering methods which adopt software automated filtering and user setting rules . most of the software has a constraint that they need manual setting , which requires some professional domain knowledge
目前已有一些比较成熟的过滤方法采用通过软件自动过滤与用户设定规则的方式,但这类软件存在着明显的不足:它需要人工设定过滤规则,这要求用户或管理员有较强的专业知识,还要求用户能随着垃圾邮件情况的变化不断调整这些规则。