| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | zsu 23 4 | United States | The ZSU 23 4 is not widely recognized in the United States. | 4 |
| 2 | zsu 23 4 | Western countries | The ZSU 23 4 is a Soviet-made self-propelled anti-aircraft gun widely used in Western countries during the Cold War. | 2 |
| 3 | zsu 23 4 | Russian | The ZSU 23 4 is a famous self-propelled anti-aircraft weapon system developed by the Soviet Union and widely used in Russian culture. | 1 |