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| LED (A semiconductor device that converts electrical energy into light, used, for example, for the activity lights on computer disk drives. Light-emitting diodes work on the principle of electroluminescence and are highly efficient, producing little heat for the amount of light output) | |||
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LED : 10 צירופים, 4 נושאים |
| אנטנות ומובילי גל | 3 |
| מכשירי חשמל | 4 |
| תַחְבּוּרָה | 1 |
| תקשורת | 2 |