（高考英语）这里的 that 是什么意思？？

Question

The performance of the new machine is being assessed by a team of experienced engineers, and based on that assessment , adjustments will be made to improve it.
and based on that assessment 这里的 that 是什么意思？？另外这句是插入语吗？？

Answer 1

that 是宾语从句的连接词，无意义，不做成分，用来连接两个句子
不是插入语，是后面并列句谓语动词的状语。

Answer 2

不是，是后面并列句谓语动词的状语。本回答被网友采纳