324 / | HD | ELECTRICITY: MEASURING AND TESTING |
500 | DF | FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS {10} |
537 | DF | .~ Of individual circuit component or element {17} |
765 | DF | .~.~ Test of semiconductor device {1} |
766 | DF | .~.~.~ With barrier layer {3} |
767 | .~.~.~.~ Diode |