X-RAY means 0.01 to 10 nanometers 3 × 10^16 Hz to 3 × 10^19 Hz in Electronics
Similar to X-RAY
3D - Three Dimensional 3R3 - 3.3 ohm Resistor 3SR - Three Station Rotating 4P4T - Quad-Pole Quad-Throw 4W - 4-Watt Resistor 4WA - Four Wire Analog 4WAI - 4-Wire Analog Interface