弱弱问OG11-5 从句类型

wandola

As its slaes of computer products have surpassed those of measuring instruments, the company has become increasingly willing to compete for the mass market sales it would have conceded to the rivals.

请问划线部分是什么从句啊？

为什么不用that or which引导？

如果有that算是正确吗？谢谢了

will_kk

定语从句,that在句子中作为宾语的时候,可以省略