"severe clashes" is correct and usable in written English.
You can use it to describe when two opposing sides have strong disagreements or confrontations. For example: "The police responded to the protests with force, resulting in severe clashes between them and the protesters."
The mostly Shia village of Sitra has seen severe clashes between protesters and police.
But the angry outbursts of violence that erupted in Brooklyn yesterday before and after the funeral of Patrick M. Dorismond were perhaps the most severe clashes between civilians and the police since the Tompkins Square Park disturbances in 1989.
If there are severe clashes, the newly added rotamer or fragment will be discarded and a structure rebuilding process will be tried.
For example, the UDP-N-acetylglucosamine enolpyruvyl transferase enzyle enzyme (MurA, PDB code: 1uae) from E. coli exists in the PDB only as apoprotein and our initial docking study with the docking program FRED software [62] showed that most drug-like molecules were unable to dock in this binding site without exhibiting severe clashes with the amino acid residues.
Walking back into town, you'd never guess that there had been severe clashes taking place only hours earlier.
Ryan Flesh, from Washington State, was in Oceti digging a tent out of the snow when other activists ran past shouting, "They're breaking through the barricade!" Flesh estimates that more than 100 campers rushed up the hill to the Backwater Bridge on Highway 1806, the site of the most severe clashes with law enforcement in November.
Rivalry between the Chinese and Muslim miners in central Yunnan triggered a severe clash in 1855, which developed into the slaughter of a great many Muslims in and around the provincial capital, Kunming, the following April.
The most severe clash between on-the-ground reports and official accounts in Washington came with comments from some commanders that Iraqi resistance had caught them off guard during Week 2. In retrospect, those pronouncements may now seem to have been off base.
Two people died, eight suffered gun shot wounds and dozens have been arrested in what authorities are calling "the most severe clash" in a decade between two California biker groups, reports Reuters -- and it all started over Starbucks coffee.
We are heading toward a potentially severe clash between environmentalists who advocate for reducing carbon emissions and community and labor activists who are most concerned about jobs, racial equity, and reducing wealth inequality.
Every big city has seen severe street clashes, posing questions forboth the regime and Venezuela's neighbours (see Bello).
