Sentence examples for difficult to produces from inspiring English sources

If any of the rumors about a possible Retina Display are true, the difficult to produces screens need to be ready.

This is actually very difficult to produce.

That is of course notoriously difficult to produce.

Is it difficult to produce so much content?

Chemically unstable, green pigments were long difficult to produce and even harder to fix.

These extreme conditions are difficult to produce in a laboratory setting and even harder to study.

Unfortunately, it was very difficult to produce an image with both effects in full force.

But the substance had a number of side effects and proved prohibitively difficult to produce.

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

Direct proof of an employer's discriminatory motive is often difficult to produce.

But why are these things compelling, except that they must have been incredibly difficult to produce?