Sentence examples for difficult and impractical from inspiring English sources

However, the lens can make the measurement of the in-plane rotation very difficult and impractical.

The truth is that it is difficult and impractical to grow organic produce without relying on the slaughterhouse.

Throughout Wilmut's career at Roslin, he had been slowly moving away from research relying on embryonic stem cells, primarily because culturing embryonic stem cells from sheep embryos was extraordinarily difficult and impractical in terms of cost and time.

James E. Hansen of the NASA Goddard Institute for Space Studies in New York, who attended the talk and strongly advocates curbing emissions, belittled the orbital sunshade as "incredibly difficult and impractical". Dr. Crutzen, the Nobel laureate from the Max Planck Institute, has also drawn fire for his paper about injecting sulfur into the stratosphere.

Elution from a GC column after derivatization was considered to be difficult and impractical.

Therefore, it is believed that the use of a U target using the proton beam power at present ISIS, 160 kW, would be very difficult and impractical.

He said that converting the site to alternative sources of energy like natural gas would be difficult, costly and impractical.

Implementing classical adding circuits using unconventional, or even living substrates such as slime mould Physarum polycephalum, is made difficult and often impractical by the challenges of branching fan-out of inputs and regions where circuit lines must cross without interference.

Thus, manufacturing antennas in large quantities for experimental reasons is difficult and even impractical.

It should be noted that it is difficult and rather impractical to discern between refugees and migrants.

It is rectangular in cross-section and its hard edges make it difficult to handle and impractical for fighting, which is indicative of the sword's purely ceremonial usage.