Sentence examples for are therefore difficult from inspiring English sources

As a result, they are relatively cool, emit very little light and are therefore difficult to spot.

They are therefore difficult to install and subject to such constant chafing and movement as to require substantial maintenance.

His lifework of about 150 paintings was produced slowly; his works are, therefore, difficult to date with certainty.

Frequent investigations, inspections, or diagnoses are therefore difficult to make.

Design processes are therefore difficult to formalize in the traditional approach.

Meta-analyses of CAD are therefore difficult and may not provide reliable conclusions.

The physical and business processes are often not well understood and are therefore difficult to model.

Clay minerals are ubiquitous in nature and are, therefore, difficult to be avoided in mined aggregates.

These are much broader aspects and are therefore difficult to measure.

They require however protocol changes and are therefore difficult to deploy.

Nevertheless, some FNHs show atypical imaging and are therefore difficult to diagnose accurately.