English version

hard hat in Construction topic

From Longman Dictionary of Contemporary Englishhard hatˌhard ˈhat noun [countable]  hard_hat.jpg TBCa protective hat, worn especially by workers in places where buildings are being built
Examples from the Corpus
hard hatIf hydrogen sulfide or some other poisonous gas is detected, Donahue dons an airtight breathing device and a hard hat.A hard hat can protect you from having a metal spike go through your skull and into your brain.I had to put my hard hat on and go to work.When no vapors are present, he simply wears the hard hat.