Question

I've never seen specifications as detailed as​

Answer 1

I've never seen specifications as detailed as This .

This is used for denoting a singular object. It shows the object is near to the speaker. It shows the relationship between nouns and speakers. It comes under the Demonstrative pronoun.

This is used for denoting a singular object. It shows the object is near to the speaker. It shows the relationship between nouns and speakers. It comes under the Demonstrative pronoun.A demonstrative pronoun is capable to complete the meaning. Mainly it replaces the noun. Here in the sentence speaker specify about the specification. It demonstrates the subject. So, here we use this which makes the sentence meaningful.