释义 |
izod test \ˈīˌzäd-, ˈīzəd-\ noun Usage: usually capitalized I Etymology: after E. G. Izod, 20th century English mechanical engineer : a test of a metal's or plastic's resistance to impact that is made by determining the amount of energy in foot-pounds needed by a swinging hammer to fracture a notched test piece of the material held in a vertical position and supported at its lower end |