| 喀尔巴阡山脉 | kā ěr bā qiān shān mài | Carpathian Mountains, 1500-km mountain range in Central and Eastern Europe | |
| 石阡 | shí qiān | Siqian county in Tongren prefecture 铜仁地区 , Guizhou | |
| 阡陌相连 | qiān mò xiāng lián | Rice fields follow one after another. (idiom) | |
| 石阡县 | shí qiān xiàn | Siqian county in Tongren prefecture 铜仁地区 , Guizhou |
| 1 | Such a system might be extended in multiple relays, so that the qubits in a key could be transmitted across continents or oceans. |