The phrase 'has been extensively revised' is correct and usable in written English.
You can use it to describe something that has undergone a major revision or extensive changes. For example, "This edition of the book has been extensively revised to include new material and updated information."
This second edition has been extensively revised and updated to provide the user with even more information and guidance.
"Jitney," which has been extensively revised since its first production in 1982, could be described as just a lot of men sitting around talking.
This second edition has been extensively revised and updated to cover recent developments, including the findings of papers published since the well-received first edition.
The second edition has been extensively revised, reflecting the recent flood of interest in synesthesia and new knowledge of human brain function and development.
Their book appeared in Britain two years ago under the title "The Tiger That Isn't," and though it has been "extensively revised" for its American edition and, more mysteriously, given a new title, it still retains a British orientation.
This seventh edition has been extensively revised and updated; new material includes a chapter on computational linguistics, more non-English examples, and a wide range of exercises, quizzes, and special topics.
Aside from new entries on topics like reverse osmosis, Yellow Tail, globalization and, of course, proanthocyanidins (components of grape tannins, and a suggestion of the depth of the scientific understanding of wine nowadays), Ms. Robinson said 40percentt of the entries had been extensively revised.
The chapters on employer's liability and damages have been extensively revised to take account of changes to the law, while throughout the book extracts of key cases have been more thoroughly integrated into the text in order to help students grasp the salient points.
Epistemology from A-Z is comprised of 296 articles on important epistemological concepts that have been extensively revised to bring the volume up-to-date, with many new and re-written entries reflecting developments in the field Includes 20 new self-profiles by leading epistemologists Contains 10 new review essays on central issues of epistemology.
Those databases have been extensively revised, checking each case, updating, correcting and completing them with the missing information with specific investigations.
