| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | blast furnace | Japan | Important in steel production and industrial history | 1 |
| 2 | relay | Japan | Relays are also used in automotive engineering to control various electrical circuits in vehicles, such as lights, fans, and motors. | 1 |
| 3 | relay | Japan | Electronic relays and relay technology are commonly used in advanced electronic devices and robotics. | 1 |
| 4 | relay | Japan | Relays are used in both industrial and household settings for controlling electrical devices and appliances. | 1 |
| 5 | torch relay | Japan | Part of traditional Olympic opening ceremonies | 1 |