Sentence examples for a challenging issue. from inspiring English sources

Race is a challenging issue.

Tracing these decisions is a challenging issue.

"Agriculture tends to be a challenging issue," he said.

A challenging issue in establishing hydrogen economy is sustainability.

However, its stable operation and control remain a challenging issue.

A challenging issue is the handling of channel interference constraints.

However, a facile, eco-friendly and cost effective coating technology is still a challenging issue.

Simulating the force-deformation behavior of stone masonry is a challenging issue.

The corrosion of the concrete in the brine environment has been a challenging issue over years.

How to use additives yet keep them from detrimental behaviors is a challenging issue.

Scale-up of aerobic fungal fermentation processes still remains a challenging issue for the biotechnology industry.