| ESTRI | Efficient spatio-temporal data retrieval method based on Impala |
| RAM | Random Access Memory |
| NoSQL | Not Only SQL |
| CLI | Command-line interface |
| ODBC | Open Database Connectivity |
| SQL | Structured Query Language |
| HDFS | Hadoop Distributed File System |
| SOS | Sensor Observation Service |
| BD | BeiDou |
| GPS | Global Position System |
| OSGeo | Open Source Geospatial Foundation |
| OGC | Open GIS Consortium |
| WKT | Well-Known Text |
| GML | Geography Markup Language |
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