4 ms·
Expo '67 Gyrotron: https://en.worldfairs.info/expopavillondetails.php?expo_id=17&pavillon_id=867 https://en.worldfairs.info/expopavillondetails.php?expo_id=1...
by euroderf 2y ago
Expo '67 Gyrotron: https://en.worldfairs.info/expopavillondetails.php?expo_id=17&pavillon_id=867 https://en.worldfairs.info/expopavillondetails.php?expo_id=1...