Meanings of using these terms in English

I'll be using these terms extensively in the review below.

We've developed a technique to-I'musing these terms loosely, you understand-sheathesomeone in a coating of fake DNA.

He says to Lady Shelton, 'Do you mean the queen has written to you about Lady Mary, using these terms?'

Using these terms, a structured literature search via multiple electronic databases was performed for the most recent trial evidence in recent years.