ratio between vapour pressure of water in the food and that of pure water at the same temperature, suhtarv, mis leitakse, jagades toidu kohal oleva veeauru osarõhu destilleeritud veeauru rõhuga samal temperatuuril

elekterkeevituse protsesside/operatsioonide rühma üldnimetus, kui keevitatavad materjalid sulatatakse elektrikaare abil, a group of welding processes that produce coalescence of metals by heating them with an arc, with or without the application of pressure and with or without the use of filler metal