GB/T 11345-2013标准中规定了4种技术，相对应需要有4种参考试块;已经有文章介绍了适用于技术1和技术2的参考试块的设计方案和使用方法。介绍了技术3和技术4的参考试块的设计和灵敏度设定等内容，并汇总技术1和技术2的参考试块，基本完成了适用于GB/T 11345-2013标准的4种技术的全部参考试块的设计。

The standard of GB/T 11345-2013 defined 4 kinds of techniques and each one accordingly needed a type of reference blocks. Some articles have introduced the project design and application of reference blocks used for “Technique 1 and Technique 2”, so this article aims to focus on the project design and application of reference blocks that used for “Technique 3 and Technique 4”. Meanwhile, it collects the content of “Technique 1 and Technique 2”, so we have finished all the design of reference blocks used for the standard of GB/T 11345-2013.