Adams felt that the piece was technically difficult to perform.

The role of the little fat boy didn't require any technically difficult dancing.

While not technically difficult, this popular climb is hard work.

Shorter than the above two routes, but much more technically difficult.

It is these odours which give rise to problems, being technically difficult to control at such low levels.

The film would not be expensive to make, or difficult technically.

For example, certain tests may be unfeasible or technically difficult.

The regulations in force are complicated and technically difficult to monitor.

The card would be sophisticated but not technically difficult to produce.

In the mid-19th century it was technically difficult to take such a picture.